31416420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{571}}^1$

素因数の和:721

約数の個数: 96

約数和(自身を含む): 101477376

約数和(自身を除く): 70060956

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 131, 140, 210, 262, 393, 420, 524, 571, 655, 786, 917, 1142, 1310, 1572, 1713, 1834, 1965, 2284, 2620, 2751, 2855, 3426, 3668, 3930, 3997, 4585, 5502, 5710, 6852, 7860, 7994, 8565, 9170, 11004, 11420, 11991, 13755, 15988, 17130, 18340, 19985, 23982, 27510, 34260, 39970, 47964, 55020, 59955, 74801, 79940, 119910, 149602, 224403, 239820, 299204, 374005, 448806, 523607, 748010, 897612, 1047214, 1122015, 1496020, 1570821, 2094428, 2244030, 2618035, 3141642, 4488060, 5236070, 6283284, 7854105, 10472140, 15708210, 31416420]

約数ペア:

[(1, 31416420), (2, 15708210), (3, 10472140), (4, 7854105), (5, 6283284), (6, 5236070), (7, 4488060), (10, 3141642), (12, 2618035), (14, 2244030), (15, 2094428), (20, 1570821), (21, 1496020), (28, 1122015), (30, 1047214), (35, 897612), (42, 748010), (60, 523607), (70, 448806), (84, 374005), (105, 299204), (131, 239820), (140, 224403), (210, 149602), (262, 119910), (393, 79940), (420, 74801), (524, 59955), (571, 55020), (655, 47964), (786, 39970), (917, 34260), (1142, 27510), (1310, 23982), (1572, 19985), (1713, 18340), (1834, 17130), (1965, 15988), (2284, 13755), (2620, 11991), (2751, 11420), (2855, 11004), (3426, 9170), (3668, 8565), (3930, 7994), (3997, 7860), (4585, 6852), (5502, 5710)]