1228081120

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{31}}^2\times {\mathrm{163}}^1$

素因数の和:254

約数の個数: 216

約数和(自身を含む): 3508809192

約数和(自身を除く): 2280728072

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 160, 163, 196, 217, 224, 245, 248, 280, 310, 326, 392, 434, 490, 496, 560, 620, 652, 784, 815, 868, 961, 980, 992, 1085, 1120, 1141, 1240, 1304, 1519, 1568, 1630, 1736, 1922, 1960, 2170, 2282, 2480, 2608, 3038, 3260, 3472, 3844, 3920, 4340, 4564, 4805, 4960, 5053, 5216, 5705, 6076, 6520, 6727, 6944, 7595, 7688, 7840, 7987, 8680, 9128, 9610, 10106, 11410, 12152, 13040, 13454, 15190, 15376, 15974, 17360, 18256, 19220, 20212, 22820, 24304, 25265, 26080, 26908, 30380, 30752, 31948, 33635, 34720, 35371, 36512, 38440, 39935, 40424, 45640, 47089, 48608, 50530, 53816, 60760, 63896, 67270, 70742, 76880, 79870, 80848, 91280, 94178, 101060, 107632, 121520, 127792, 134540, 141484, 153760, 156643, 159740, 161696, 176855, 182560, 188356, 202120, 215264, 235445, 243040, 247597, 255584, 269080, 282968, 313286, 319480, 353710, 376712, 404240, 470890, 495194, 538160, 565936, 626572, 638960, 707420, 753424, 783215, 808480, 941780, 990388, 1076320, 1096501, 1131872, 1237985, 1253144, 1277920, 1414840, 1506848, 1566430, 1883560, 1980776, 2193002, 2475970, 2506288, 2829680, 3132860, 3767120, 3961552, 4386004, 4951940, 5012576, 5482505, 5659360, 6265720, 7534240, 7675507, 7923104, 8772008, 9903880, 10965010, 12531440, 15351014, 17544016, 19807760, 21930020, 25062880, 30702028, 35088032, 38377535, 39615520, 43860040, 61404056, 76755070, 87720080, 122808112, 153510140, 175440160, 245616224, 307020280, 614040560, 1228081120]

約数ペア:

[(1, 1228081120), (2, 614040560), (4, 307020280), (5, 245616224), (7, 175440160), (8, 153510140), (10, 122808112), (14, 87720080), (16, 76755070), (20, 61404056), (28, 43860040), (31, 39615520), (32, 38377535), (35, 35088032), (40, 30702028), (49, 25062880), (56, 21930020), (62, 19807760), (70, 17544016), (80, 15351014), (98, 12531440), (112, 10965010), (124, 9903880), (140, 8772008), (155, 7923104), (160, 7675507), (163, 7534240), (196, 6265720), (217, 5659360), (224, 5482505), (245, 5012576), (248, 4951940), (280, 4386004), (310, 3961552), (326, 3767120), (392, 3132860), (434, 2829680), (490, 2506288), (496, 2475970), (560, 2193002), (620, 1980776), (652, 1883560), (784, 1566430), (815, 1506848), (868, 1414840), (961, 1277920), (980, 1253144), (992, 1237985), (1085, 1131872), (1120, 1096501), (1141, 1076320), (1240, 990388), (1304, 941780), (1519, 808480), (1568, 783215), (1630, 753424), (1736, 707420), (1922, 638960), (1960, 626572), (2170, 565936), (2282, 538160), (2480, 495194), (2608, 470890), (3038, 404240), (3260, 376712), (3472, 353710), (3844, 319480), (3920, 313286), (4340, 282968), (4564, 269080), (4805, 255584), (4960, 247597), (5053, 243040), (5216, 235445), (5705, 215264), (6076, 202120), (6520, 188356), (6727, 182560), (6944, 176855), (7595, 161696), (7688, 159740), (7840, 156643), (7987, 153760), (8680, 141484), (9128, 134540), (9610, 127792), (10106, 121520), (11410, 107632), (12152, 101060), (13040, 94178), (13454, 91280), (15190, 80848), (15376, 79870), (15974, 76880), (17360, 70742), (18256, 67270), (19220, 63896), (20212, 60760), (22820, 53816), (24304, 50530), (25265, 48608), (26080, 47089), (26908, 45640), (30380, 40424), (30752, 39935), (31948, 38440), (33635, 36512), (34720, 35371)]