254467840

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:127

約数の個数: 216

約数和(自身を含む): 704640384

約数和(自身を除く): 450172544

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 53, 55, 62, 64, 80, 88, 106, 110, 121, 124, 128, 155, 160, 176, 212, 220, 242, 248, 256, 265, 310, 320, 341, 352, 424, 440, 484, 496, 530, 583, 605, 620, 640, 682, 704, 848, 880, 968, 992, 1060, 1166, 1210, 1240, 1280, 1364, 1408, 1643, 1696, 1705, 1760, 1936, 1984, 2120, 2332, 2420, 2480, 2728, 2816, 2915, 3286, 3392, 3410, 3520, 3751, 3872, 3968, 4240, 4664, 4840, 4960, 5456, 5830, 6413, 6572, 6784, 6820, 7040, 7502, 7744, 7936, 8215, 8480, 9328, 9680, 9920, 10912, 11660, 12826, 13144, 13568, 13640, 14080, 15004, 15488, 16430, 16960, 18073, 18656, 18755, 19360, 19840, 21824, 23320, 25652, 26288, 27280, 30008, 30976, 32065, 32860, 33920, 36146, 37312, 37510, 38720, 39680, 43648, 46640, 51304, 52576, 54560, 60016, 64130, 65720, 67840, 72292, 74624, 75020, 77440, 87296, 90365, 93280, 102608, 105152, 109120, 120032, 128260, 131440, 144584, 149248, 150040, 154880, 180730, 186560, 198803, 205216, 210304, 218240, 240064, 256520, 262880, 289168, 300080, 361460, 373120, 397606, 410432, 420608, 436480, 480128, 513040, 525760, 578336, 600160, 722920, 746240, 795212, 820864, 960256, 994015, 1026080, 1051520, 1156672, 1200320, 1445840, 1590424, 1641728, 1988030, 2052160, 2103040, 2313344, 2400640, 2891680, 3180848, 3976060, 4104320, 4626688, 4801280, 5783360, 6361696, 7952120, 8208640, 11566720, 12723392, 15904240, 23133440, 25446784, 31808480, 50893568, 63616960, 127233920, 254467840]

約数ペア:

[(1, 254467840), (2, 127233920), (4, 63616960), (5, 50893568), (8, 31808480), (10, 25446784), (11, 23133440), (16, 15904240), (20, 12723392), (22, 11566720), (31, 8208640), (32, 7952120), (40, 6361696), (44, 5783360), (53, 4801280), (55, 4626688), (62, 4104320), (64, 3976060), (80, 3180848), (88, 2891680), (106, 2400640), (110, 2313344), (121, 2103040), (124, 2052160), (128, 1988030), (155, 1641728), (160, 1590424), (176, 1445840), (212, 1200320), (220, 1156672), (242, 1051520), (248, 1026080), (256, 994015), (265, 960256), (310, 820864), (320, 795212), (341, 746240), (352, 722920), (424, 600160), (440, 578336), (484, 525760), (496, 513040), (530, 480128), (583, 436480), (605, 420608), (620, 410432), (640, 397606), (682, 373120), (704, 361460), (848, 300080), (880, 289168), (968, 262880), (992, 256520), (1060, 240064), (1166, 218240), (1210, 210304), (1240, 205216), (1280, 198803), (1364, 186560), (1408, 180730), (1643, 154880), (1696, 150040), (1705, 149248), (1760, 144584), (1936, 131440), (1984, 128260), (2120, 120032), (2332, 109120), (2420, 105152), (2480, 102608), (2728, 93280), (2816, 90365), (2915, 87296), (3286, 77440), (3392, 75020), (3410, 74624), (3520, 72292), (3751, 67840), (3872, 65720), (3968, 64130), (4240, 60016), (4664, 54560), (4840, 52576), (4960, 51304), (5456, 46640), (5830, 43648), (6413, 39680), (6572, 38720), (6784, 37510), (6820, 37312), (7040, 36146), (7502, 33920), (7744, 32860), (7936, 32065), (8215, 30976), (8480, 30008), (9328, 27280), (9680, 26288), (9920, 25652), (10912, 23320), (11660, 21824), (12826, 19840), (13144, 19360), (13568, 18755), (13640, 18656), (14080, 18073), (15004, 16960), (15488, 16430)]