64189840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:249

約数の個数: 160

約数和(自身を含む): 181988352

約数和(自身を除く): 117798512

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 31, 40, 44, 52, 55, 62, 65, 80, 88, 104, 110, 124, 130, 143, 155, 176, 181, 208, 220, 248, 260, 286, 310, 341, 362, 403, 440, 496, 520, 572, 620, 682, 715, 724, 806, 880, 905, 1040, 1144, 1240, 1364, 1430, 1448, 1612, 1705, 1810, 1991, 2015, 2288, 2353, 2480, 2728, 2860, 2896, 3224, 3410, 3620, 3982, 4030, 4433, 4706, 5456, 5611, 5720, 6448, 6820, 7240, 7964, 8060, 8866, 9412, 9955, 11222, 11440, 11765, 13640, 14480, 15928, 16120, 17732, 18824, 19910, 22165, 22444, 23530, 25883, 27280, 28055, 31856, 32240, 35464, 37648, 39820, 44330, 44888, 47060, 51766, 56110, 61721, 70928, 72943, 79640, 88660, 89776, 94120, 103532, 112220, 123442, 129415, 145886, 159280, 177320, 188240, 207064, 224440, 246884, 258830, 291772, 308605, 354640, 364715, 414128, 448880, 493768, 517660, 583544, 617210, 729430, 802373, 987536, 1035320, 1167088, 1234420, 1458860, 1604746, 2070640, 2468840, 2917720, 3209492, 4011865, 4937680, 5835440, 6418984, 8023730, 12837968, 16047460, 32094920, 64189840]

約数ペア:

[(1, 64189840), (2, 32094920), (4, 16047460), (5, 12837968), (8, 8023730), (10, 6418984), (11, 5835440), (13, 4937680), (16, 4011865), (20, 3209492), (22, 2917720), (26, 2468840), (31, 2070640), (40, 1604746), (44, 1458860), (52, 1234420), (55, 1167088), (62, 1035320), (65, 987536), (80, 802373), (88, 729430), (104, 617210), (110, 583544), (124, 517660), (130, 493768), (143, 448880), (155, 414128), (176, 364715), (181, 354640), (208, 308605), (220, 291772), (248, 258830), (260, 246884), (286, 224440), (310, 207064), (341, 188240), (362, 177320), (403, 159280), (440, 145886), (496, 129415), (520, 123442), (572, 112220), (620, 103532), (682, 94120), (715, 89776), (724, 88660), (806, 79640), (880, 72943), (905, 70928), (1040, 61721), (1144, 56110), (1240, 51766), (1364, 47060), (1430, 44888), (1448, 44330), (1612, 39820), (1705, 37648), (1810, 35464), (1991, 32240), (2015, 31856), (2288, 28055), (2353, 27280), (2480, 25883), (2728, 23530), (2860, 22444), (2896, 22165), (3224, 19910), (3410, 18824), (3620, 17732), (3982, 16120), (4030, 15928), (4433, 14480), (4706, 13640), (5456, 11765), (5611, 11440), (5720, 11222), (6448, 9955), (6820, 9412), (7240, 8866), (7964, 8060)]