1375664680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1399}}^1$

素因数の和:1515

約数の個数: 128

約数和(自身を含む): 3499776000

約数和(自身を除く): 2124111320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 61, 62, 65, 104, 122, 124, 130, 155, 244, 248, 260, 305, 310, 403, 488, 520, 610, 620, 793, 806, 1220, 1240, 1399, 1586, 1612, 1891, 2015, 2440, 2798, 3172, 3224, 3782, 3965, 4030, 5596, 6344, 6995, 7564, 7930, 8060, 9455, 11192, 13990, 15128, 15860, 16120, 18187, 18910, 24583, 27980, 31720, 36374, 37820, 43369, 49166, 55960, 72748, 75640, 85339, 86738, 90935, 98332, 122915, 145496, 170678, 173476, 181870, 196664, 216845, 245830, 341356, 346952, 363740, 426695, 433690, 491660, 563797, 682712, 727480, 853390, 867380, 983320, 1109407, 1127594, 1706780, 1734760, 2218814, 2255188, 2645509, 2818985, 3413560, 4437628, 4510376, 5291018, 5547035, 5637970, 8875256, 10582036, 11094070, 11275940, 13227545, 21164072, 22188140, 22551880, 26455090, 34391617, 44376280, 52910180, 68783234, 105820360, 137566468, 171958085, 275132936, 343916170, 687832340, 1375664680]

約数ペア:

[(1, 1375664680), (2, 687832340), (4, 343916170), (5, 275132936), (8, 171958085), (10, 137566468), (13, 105820360), (20, 68783234), (26, 52910180), (31, 44376280), (40, 34391617), (52, 26455090), (61, 22551880), (62, 22188140), (65, 21164072), (104, 13227545), (122, 11275940), (124, 11094070), (130, 10582036), (155, 8875256), (244, 5637970), (248, 5547035), (260, 5291018), (305, 4510376), (310, 4437628), (403, 3413560), (488, 2818985), (520, 2645509), (610, 2255188), (620, 2218814), (793, 1734760), (806, 1706780), (1220, 1127594), (1240, 1109407), (1399, 983320), (1586, 867380), (1612, 853390), (1891, 727480), (2015, 682712), (2440, 563797), (2798, 491660), (3172, 433690), (3224, 426695), (3782, 363740), (3965, 346952), (4030, 341356), (5596, 245830), (6344, 216845), (6995, 196664), (7564, 181870), (7930, 173476), (8060, 170678), (9455, 145496), (11192, 122915), (13990, 98332), (15128, 90935), (15860, 86738), (16120, 85339), (18187, 75640), (18910, 72748), (24583, 55960), (27980, 49166), (31720, 43369), (36374, 37820)]