31418520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{331}}^1$

素因数の和:465

約数の個数: 128

約数和(自身を含む): 109002240

約数和(自身を除く): 77583720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 113, 120, 140, 168, 210, 226, 280, 331, 339, 420, 452, 565, 662, 678, 791, 840, 904, 993, 1130, 1324, 1356, 1582, 1655, 1695, 1986, 2260, 2317, 2373, 2648, 2712, 3164, 3310, 3390, 3955, 3972, 4520, 4634, 4746, 4965, 6328, 6620, 6780, 6951, 7910, 7944, 9268, 9492, 9930, 11585, 11865, 13240, 13560, 13902, 15820, 18536, 18984, 19860, 23170, 23730, 27804, 31640, 34755, 37403, 39720, 46340, 47460, 55608, 69510, 74806, 92680, 94920, 112209, 139020, 149612, 187015, 224418, 261821, 278040, 299224, 374030, 448836, 523642, 561045, 748060, 785463, 897672, 1047284, 1122090, 1309105, 1496120, 1570926, 2094568, 2244180, 2618210, 3141852, 3927315, 4488360, 5236420, 6283704, 7854630, 10472840, 15709260, 31418520]

約数ペア:

[(1, 31418520), (2, 15709260), (3, 10472840), (4, 7854630), (5, 6283704), (6, 5236420), (7, 4488360), (8, 3927315), (10, 3141852), (12, 2618210), (14, 2244180), (15, 2094568), (20, 1570926), (21, 1496120), (24, 1309105), (28, 1122090), (30, 1047284), (35, 897672), (40, 785463), (42, 748060), (56, 561045), (60, 523642), (70, 448836), (84, 374030), (105, 299224), (113, 278040), (120, 261821), (140, 224418), (168, 187015), (210, 149612), (226, 139020), (280, 112209), (331, 94920), (339, 92680), (420, 74806), (452, 69510), (565, 55608), (662, 47460), (678, 46340), (791, 39720), (840, 37403), (904, 34755), (993, 31640), (1130, 27804), (1324, 23730), (1356, 23170), (1582, 19860), (1655, 18984), (1695, 18536), (1986, 15820), (2260, 13902), (2317, 13560), (2373, 13240), (2648, 11865), (2712, 11585), (3164, 9930), (3310, 9492), (3390, 9268), (3955, 7944), (3972, 7910), (4520, 6951), (4634, 6780), (4746, 6620), (4965, 6328)]