56808700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:607

約数の個数: 72

約数和(自身を含む): 134522640

約数和(自身を除く): 77713940

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 89, 100, 130, 178, 260, 325, 356, 445, 491, 650, 890, 982, 1157, 1300, 1780, 1964, 2225, 2314, 2455, 4450, 4628, 4910, 5785, 6383, 8900, 9820, 11570, 12275, 12766, 23140, 24550, 25532, 28925, 31915, 43699, 49100, 57850, 63830, 87398, 115700, 127660, 159575, 174796, 218495, 319150, 436990, 568087, 638300, 873980, 1092475, 1136174, 2184950, 2272348, 2840435, 4369900, 5680870, 11361740, 14202175, 28404350, 56808700]

約数ペア:

[(1, 56808700), (2, 28404350), (4, 14202175), (5, 11361740), (10, 5680870), (13, 4369900), (20, 2840435), (25, 2272348), (26, 2184950), (50, 1136174), (52, 1092475), (65, 873980), (89, 638300), (100, 568087), (130, 436990), (178, 319150), (260, 218495), (325, 174796), (356, 159575), (445, 127660), (491, 115700), (650, 87398), (890, 63830), (982, 57850), (1157, 49100), (1300, 43699), (1780, 31915), (1964, 28925), (2225, 25532), (2314, 24550), (2455, 23140), (4450, 12766), (4628, 12275), (4910, 11570), (5785, 9820), (6383, 8900)]