155549320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:263

約数の個数: 128

約数和(自身を含む): 393154560

約数和(自身を除く): 237605240

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 47, 62, 68, 85, 94, 124, 136, 155, 157, 170, 188, 235, 248, 310, 314, 340, 376, 470, 527, 620, 628, 680, 785, 799, 940, 1054, 1240, 1256, 1457, 1570, 1598, 1880, 2108, 2635, 2669, 2914, 3140, 3196, 3995, 4216, 4867, 5270, 5338, 5828, 6280, 6392, 7285, 7379, 7990, 9734, 10540, 10676, 11656, 13345, 14570, 14758, 15980, 19468, 21080, 21352, 24335, 24769, 26690, 29140, 29516, 31960, 36895, 38936, 48670, 49538, 53380, 58280, 59032, 73790, 82739, 97340, 99076, 106760, 123845, 125443, 147580, 165478, 194680, 198152, 228749, 247690, 250886, 295160, 330956, 413695, 457498, 495380, 501772, 627215, 661912, 827390, 914996, 990760, 1003544, 1143745, 1254430, 1654780, 1829992, 2287490, 2508860, 3309560, 3888733, 4574980, 5017720, 7777466, 9149960, 15554932, 19443665, 31109864, 38887330, 77774660, 155549320]

約数ペア:

[(1, 155549320), (2, 77774660), (4, 38887330), (5, 31109864), (8, 19443665), (10, 15554932), (17, 9149960), (20, 7777466), (31, 5017720), (34, 4574980), (40, 3888733), (47, 3309560), (62, 2508860), (68, 2287490), (85, 1829992), (94, 1654780), (124, 1254430), (136, 1143745), (155, 1003544), (157, 990760), (170, 914996), (188, 827390), (235, 661912), (248, 627215), (310, 501772), (314, 495380), (340, 457498), (376, 413695), (470, 330956), (527, 295160), (620, 250886), (628, 247690), (680, 228749), (785, 198152), (799, 194680), (940, 165478), (1054, 147580), (1240, 125443), (1256, 123845), (1457, 106760), (1570, 99076), (1598, 97340), (1880, 82739), (2108, 73790), (2635, 59032), (2669, 58280), (2914, 53380), (3140, 49538), (3196, 48670), (3995, 38936), (4216, 36895), (4867, 31960), (5270, 29516), (5338, 29140), (5828, 26690), (6280, 24769), (6392, 24335), (7285, 21352), (7379, 21080), (7990, 19468), (9734, 15980), (10540, 14758), (10676, 14570), (11656, 13345)]