31438160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:125

約数の個数: 160

約数和(自身を含む): 87077760

約数和(自身を除く): 55639600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 37, 38, 40, 43, 52, 65, 74, 76, 80, 86, 95, 104, 130, 148, 152, 172, 185, 190, 208, 215, 247, 260, 296, 304, 344, 370, 380, 430, 481, 494, 520, 559, 592, 688, 703, 740, 760, 817, 860, 962, 988, 1040, 1118, 1235, 1406, 1480, 1520, 1591, 1634, 1720, 1924, 1976, 2236, 2405, 2470, 2795, 2812, 2960, 3182, 3268, 3440, 3515, 3848, 3952, 4085, 4472, 4810, 4940, 5590, 5624, 6364, 6536, 7030, 7696, 7955, 8170, 8944, 9139, 9620, 9880, 10621, 11180, 11248, 12728, 13072, 14060, 15910, 16340, 18278, 19240, 19760, 20683, 21242, 22360, 25456, 28120, 30229, 31820, 32680, 36556, 38480, 41366, 42484, 44720, 45695, 53105, 56240, 60458, 63640, 65360, 73112, 82732, 84968, 91390, 103415, 106210, 120916, 127280, 146224, 151145, 165464, 169936, 182780, 206830, 212420, 241832, 302290, 330928, 365560, 392977, 413660, 424840, 483664, 604580, 731120, 785954, 827320, 849680, 1209160, 1571908, 1654640, 1964885, 2418320, 3143816, 3929770, 6287632, 7859540, 15719080, 31438160]

約数ペア:

[(1, 31438160), (2, 15719080), (4, 7859540), (5, 6287632), (8, 3929770), (10, 3143816), (13, 2418320), (16, 1964885), (19, 1654640), (20, 1571908), (26, 1209160), (37, 849680), (38, 827320), (40, 785954), (43, 731120), (52, 604580), (65, 483664), (74, 424840), (76, 413660), (80, 392977), (86, 365560), (95, 330928), (104, 302290), (130, 241832), (148, 212420), (152, 206830), (172, 182780), (185, 169936), (190, 165464), (208, 151145), (215, 146224), (247, 127280), (260, 120916), (296, 106210), (304, 103415), (344, 91390), (370, 84968), (380, 82732), (430, 73112), (481, 65360), (494, 63640), (520, 60458), (559, 56240), (592, 53105), (688, 45695), (703, 44720), (740, 42484), (760, 41366), (817, 38480), (860, 36556), (962, 32680), (988, 31820), (1040, 30229), (1118, 28120), (1235, 25456), (1406, 22360), (1480, 21242), (1520, 20683), (1591, 19760), (1634, 19240), (1720, 18278), (1924, 16340), (1976, 15910), (2236, 14060), (2405, 13072), (2470, 12728), (2795, 11248), (2812, 11180), (2960, 10621), (3182, 9880), (3268, 9620), (3440, 9139), (3515, 8944), (3848, 8170), (3952, 7955), (4085, 7696), (4472, 7030), (4810, 6536), (4940, 6364), (5590, 5624)]