85145840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:215

約数の個数: 160

約数和(自身を含む): 233318400

約数和(自身を除く): 148172560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 31, 38, 40, 52, 62, 65, 76, 80, 95, 104, 124, 130, 139, 152, 155, 190, 208, 247, 248, 260, 278, 304, 310, 380, 403, 494, 496, 520, 556, 589, 620, 695, 760, 806, 988, 1040, 1112, 1178, 1235, 1240, 1390, 1520, 1612, 1807, 1976, 2015, 2224, 2356, 2470, 2480, 2641, 2780, 2945, 3224, 3614, 3952, 4030, 4309, 4712, 4940, 5282, 5560, 5890, 6448, 7228, 7657, 8060, 8618, 9035, 9424, 9880, 10564, 11120, 11780, 13205, 14456, 15314, 16120, 17236, 18070, 19760, 21128, 21545, 23560, 26410, 28912, 30628, 32240, 34333, 34472, 36140, 38285, 42256, 43090, 47120, 52820, 56017, 61256, 68666, 68944, 72280, 76570, 81871, 86180, 105640, 112034, 122512, 137332, 144560, 153140, 163742, 171665, 172360, 211280, 224068, 274664, 280085, 306280, 327484, 343330, 344720, 409355, 448136, 549328, 560170, 612560, 654968, 686660, 818710, 896272, 1064323, 1120340, 1309936, 1373320, 1637420, 2128646, 2240680, 2746640, 3274840, 4257292, 4481360, 5321615, 6549680, 8514584, 10643230, 17029168, 21286460, 42572920, 85145840]

約数ペア:

[(1, 85145840), (2, 42572920), (4, 21286460), (5, 17029168), (8, 10643230), (10, 8514584), (13, 6549680), (16, 5321615), (19, 4481360), (20, 4257292), (26, 3274840), (31, 2746640), (38, 2240680), (40, 2128646), (52, 1637420), (62, 1373320), (65, 1309936), (76, 1120340), (80, 1064323), (95, 896272), (104, 818710), (124, 686660), (130, 654968), (139, 612560), (152, 560170), (155, 549328), (190, 448136), (208, 409355), (247, 344720), (248, 343330), (260, 327484), (278, 306280), (304, 280085), (310, 274664), (380, 224068), (403, 211280), (494, 172360), (496, 171665), (520, 163742), (556, 153140), (589, 144560), (620, 137332), (695, 122512), (760, 112034), (806, 105640), (988, 86180), (1040, 81871), (1112, 76570), (1178, 72280), (1235, 68944), (1240, 68666), (1390, 61256), (1520, 56017), (1612, 52820), (1807, 47120), (1976, 43090), (2015, 42256), (2224, 38285), (2356, 36140), (2470, 34472), (2480, 34333), (2641, 32240), (2780, 30628), (2945, 28912), (3224, 26410), (3614, 23560), (3952, 21545), (4030, 21128), (4309, 19760), (4712, 18070), (4940, 17236), (5282, 16120), (5560, 15314), (5890, 14456), (6448, 13205), (7228, 11780), (7657, 11120), (8060, 10564), (8618, 9880), (9035, 9424)]