72523880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:475

約数の個数: 128

約数和(自身を含む): 198374400

約数和(自身を除く): 125850520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 31, 40, 44, 52, 55, 62, 65, 88, 104, 110, 124, 130, 143, 155, 220, 248, 260, 286, 310, 341, 403, 409, 440, 520, 572, 620, 682, 715, 806, 818, 1144, 1240, 1364, 1430, 1612, 1636, 1705, 2015, 2045, 2728, 2860, 3224, 3272, 3410, 4030, 4090, 4433, 4499, 5317, 5720, 6820, 8060, 8180, 8866, 8998, 10634, 12679, 13640, 16120, 16360, 17732, 17996, 21268, 22165, 22495, 25358, 26585, 35464, 35992, 42536, 44330, 44990, 50716, 53170, 58487, 63395, 88660, 89980, 101432, 106340, 116974, 126790, 139469, 164827, 177320, 179960, 212680, 233948, 253580, 278938, 292435, 329654, 467896, 507160, 557876, 584870, 659308, 697345, 824135, 1115752, 1169740, 1318616, 1394690, 1648270, 1813097, 2339480, 2789380, 3296540, 3626194, 5578760, 6593080, 7252388, 9065485, 14504776, 18130970, 36261940, 72523880]

約数ペア:

[(1, 72523880), (2, 36261940), (4, 18130970), (5, 14504776), (8, 9065485), (10, 7252388), (11, 6593080), (13, 5578760), (20, 3626194), (22, 3296540), (26, 2789380), (31, 2339480), (40, 1813097), (44, 1648270), (52, 1394690), (55, 1318616), (62, 1169740), (65, 1115752), (88, 824135), (104, 697345), (110, 659308), (124, 584870), (130, 557876), (143, 507160), (155, 467896), (220, 329654), (248, 292435), (260, 278938), (286, 253580), (310, 233948), (341, 212680), (403, 179960), (409, 177320), (440, 164827), (520, 139469), (572, 126790), (620, 116974), (682, 106340), (715, 101432), (806, 89980), (818, 88660), (1144, 63395), (1240, 58487), (1364, 53170), (1430, 50716), (1612, 44990), (1636, 44330), (1705, 42536), (2015, 35992), (2045, 35464), (2728, 26585), (2860, 25358), (3224, 22495), (3272, 22165), (3410, 21268), (4030, 17996), (4090, 17732), (4433, 16360), (4499, 16120), (5317, 13640), (5720, 12679), (6820, 10634), (8060, 8998), (8180, 8866)]