740500280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{397}}^1$

素因数の和:649

約数の個数: 128

約数和(自身を含む): 1913647680

約数和(自身を除く): 1173147400

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 211, 221, 260, 340, 397, 422, 442, 520, 680, 794, 844, 884, 1055, 1105, 1588, 1688, 1768, 1985, 2110, 2210, 2743, 3176, 3587, 3970, 4220, 4420, 5161, 5486, 6749, 7174, 7940, 8440, 8840, 10322, 10972, 13498, 13715, 14348, 15880, 17935, 20644, 21944, 25805, 26996, 27430, 28696, 33745, 35870, 41288, 46631, 51610, 53992, 54860, 67490, 71740, 83767, 87737, 93262, 103220, 109720, 134980, 143480, 167534, 175474, 186524, 206440, 233155, 269960, 335068, 350948, 373048, 418835, 438685, 466310, 670136, 701896, 837670, 877370, 932620, 1088971, 1424039, 1675340, 1754740, 1865240, 2177942, 2848078, 3350680, 3509480, 4355884, 5444855, 5696156, 7120195, 8711768, 10889710, 11392312, 14240390, 18512507, 21779420, 28480780, 37025014, 43558840, 56961560, 74050028, 92562535, 148100056, 185125070, 370250140, 740500280]

約数ペア:

[(1, 740500280), (2, 370250140), (4, 185125070), (5, 148100056), (8, 92562535), (10, 74050028), (13, 56961560), (17, 43558840), (20, 37025014), (26, 28480780), (34, 21779420), (40, 18512507), (52, 14240390), (65, 11392312), (68, 10889710), (85, 8711768), (104, 7120195), (130, 5696156), (136, 5444855), (170, 4355884), (211, 3509480), (221, 3350680), (260, 2848078), (340, 2177942), (397, 1865240), (422, 1754740), (442, 1675340), (520, 1424039), (680, 1088971), (794, 932620), (844, 877370), (884, 837670), (1055, 701896), (1105, 670136), (1588, 466310), (1688, 438685), (1768, 418835), (1985, 373048), (2110, 350948), (2210, 335068), (2743, 269960), (3176, 233155), (3587, 206440), (3970, 186524), (4220, 175474), (4420, 167534), (5161, 143480), (5486, 134980), (6749, 109720), (7174, 103220), (7940, 93262), (8440, 87737), (8840, 83767), (10322, 71740), (10972, 67490), (13498, 54860), (13715, 53992), (14348, 51610), (15880, 46631), (17935, 41288), (20644, 35870), (21944, 33745), (25805, 28696), (26996, 27430)]