42572920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:213

約数の個数: 128

約数和(自身を含む): 112896000

約数和(自身を除く): 70323080

約数列:

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

約数ペア:

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