78499960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{331}}^1$

素因数の和:378

約数の個数: 144

約数和(自身を含む): 226520280

約数和(自身を除く): 148020320

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 88, 98, 110, 121, 140, 154, 196, 220, 242, 245, 280, 308, 331, 385, 392, 440, 484, 490, 539, 605, 616, 662, 770, 847, 968, 980, 1078, 1210, 1324, 1540, 1655, 1694, 1960, 2156, 2317, 2420, 2648, 2695, 3080, 3310, 3388, 3641, 4235, 4312, 4634, 4840, 5390, 5929, 6620, 6776, 7282, 8470, 9268, 10780, 11585, 11858, 13240, 14564, 16219, 16940, 18205, 18536, 21560, 23170, 23716, 25487, 29128, 29645, 32438, 33880, 36410, 40051, 46340, 47432, 50974, 59290, 64876, 72820, 80102, 81095, 92680, 101948, 118580, 127435, 129752, 145640, 160204, 162190, 178409, 200255, 203896, 237160, 254870, 280357, 320408, 324380, 356818, 400510, 509740, 560714, 648760, 713636, 801020, 892045, 1019480, 1121428, 1401785, 1427272, 1602040, 1784090, 1962499, 2242856, 2803570, 3568180, 3924998, 5607140, 7136360, 7849996, 9812495, 11214280, 15699992, 19624990, 39249980, 78499960]

約数ペア:

[(1, 78499960), (2, 39249980), (4, 19624990), (5, 15699992), (7, 11214280), (8, 9812495), (10, 7849996), (11, 7136360), (14, 5607140), (20, 3924998), (22, 3568180), (28, 2803570), (35, 2242856), (40, 1962499), (44, 1784090), (49, 1602040), (55, 1427272), (56, 1401785), (70, 1121428), (77, 1019480), (88, 892045), (98, 801020), (110, 713636), (121, 648760), (140, 560714), (154, 509740), (196, 400510), (220, 356818), (242, 324380), (245, 320408), (280, 280357), (308, 254870), (331, 237160), (385, 203896), (392, 200255), (440, 178409), (484, 162190), (490, 160204), (539, 145640), (605, 129752), (616, 127435), (662, 118580), (770, 101948), (847, 92680), (968, 81095), (980, 80102), (1078, 72820), (1210, 64876), (1324, 59290), (1540, 50974), (1655, 47432), (1694, 46340), (1960, 40051), (2156, 36410), (2317, 33880), (2420, 32438), (2648, 29645), (2695, 29128), (3080, 25487), (3310, 23716), (3388, 23170), (3641, 21560), (4235, 18536), (4312, 18205), (4634, 16940), (4840, 16219), (5390, 14564), (5929, 13240), (6620, 11858), (6776, 11585), (7282, 10780), (8470, 9268)]