280254520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{647}}^1$

素因数の和:702

約数の個数: 192

約数和(自身を含む): 837708480

約数和(自身を除く): 557453960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 17, 20, 26, 28, 34, 35, 40, 49, 52, 56, 65, 68, 70, 85, 91, 98, 104, 119, 130, 136, 140, 170, 182, 196, 221, 238, 245, 260, 280, 340, 364, 392, 442, 455, 476, 490, 520, 595, 637, 647, 680, 728, 833, 884, 910, 952, 980, 1105, 1190, 1274, 1294, 1547, 1666, 1768, 1820, 1960, 2210, 2380, 2548, 2588, 3094, 3185, 3235, 3332, 3640, 4165, 4420, 4529, 4760, 5096, 5176, 6188, 6370, 6470, 6664, 7735, 8330, 8411, 8840, 9058, 10829, 10999, 12376, 12740, 12940, 15470, 16660, 16822, 18116, 21658, 21998, 22645, 25480, 25880, 30940, 31703, 33320, 33644, 36232, 42055, 43316, 43996, 45290, 54145, 54995, 58877, 61880, 63406, 67288, 76993, 84110, 86632, 87992, 90580, 108290, 109990, 117754, 126812, 142987, 153986, 158515, 168220, 181160, 216580, 219980, 235508, 253624, 285974, 294385, 307972, 317030, 336440, 384965, 412139, 433160, 439960, 471016, 538951, 571948, 588770, 615944, 634060, 714935, 769930, 824278, 1000909, 1077902, 1143896, 1177540, 1268120, 1429870, 1539860, 1648556, 2001818, 2060695, 2155804, 2355080, 2694755, 2859740, 3079720, 3297112, 4003636, 4121390, 4311608, 5004545, 5389510, 5719480, 7006363, 8007272, 8242780, 10009090, 10779020, 14012726, 16485560, 20018180, 21558040, 28025452, 35031815, 40036360, 56050904, 70063630, 140127260, 280254520]

約数ペア:

[(1, 280254520), (2, 140127260), (4, 70063630), (5, 56050904), (7, 40036360), (8, 35031815), (10, 28025452), (13, 21558040), (14, 20018180), (17, 16485560), (20, 14012726), (26, 10779020), (28, 10009090), (34, 8242780), (35, 8007272), (40, 7006363), (49, 5719480), (52, 5389510), (56, 5004545), (65, 4311608), (68, 4121390), (70, 4003636), (85, 3297112), (91, 3079720), (98, 2859740), (104, 2694755), (119, 2355080), (130, 2155804), (136, 2060695), (140, 2001818), (170, 1648556), (182, 1539860), (196, 1429870), (221, 1268120), (238, 1177540), (245, 1143896), (260, 1077902), (280, 1000909), (340, 824278), (364, 769930), (392, 714935), (442, 634060), (455, 615944), (476, 588770), (490, 571948), (520, 538951), (595, 471016), (637, 439960), (647, 433160), (680, 412139), (728, 384965), (833, 336440), (884, 317030), (910, 307972), (952, 294385), (980, 285974), (1105, 253624), (1190, 235508), (1274, 219980), (1294, 216580), (1547, 181160), (1666, 168220), (1768, 158515), (1820, 153986), (1960, 142987), (2210, 126812), (2380, 117754), (2548, 109990), (2588, 108290), (3094, 90580), (3185, 87992), (3235, 86632), (3332, 84110), (3640, 76993), (4165, 67288), (4420, 63406), (4529, 61880), (4760, 58877), (5096, 54995), (5176, 54145), (6188, 45290), (6370, 43996), (6470, 43316), (6664, 42055), (7735, 36232), (8330, 33644), (8411, 33320), (8840, 31703), (9058, 30940), (10829, 25880), (10999, 25480), (12376, 22645), (12740, 21998), (12940, 21658), (15470, 18116), (16660, 16822)]