72813520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1321}}^1$

素因数の和:1400

約数の個数: 80

約数和(自身を含む): 185894352

約数和(自身を除く): 113080832

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 208, 212, 260, 265, 424, 520, 530, 689, 848, 1040, 1060, 1321, 1378, 2120, 2642, 2756, 3445, 4240, 5284, 5512, 6605, 6890, 10568, 11024, 13210, 13780, 17173, 21136, 26420, 27560, 34346, 52840, 55120, 68692, 70013, 85865, 105680, 137384, 140026, 171730, 274768, 280052, 343460, 350065, 560104, 686920, 700130, 910169, 1120208, 1373840, 1400260, 1820338, 2800520, 3640676, 4550845, 5601040, 7281352, 9101690, 14562704, 18203380, 36406760, 72813520]

約数ペア:

[(1, 72813520), (2, 36406760), (4, 18203380), (5, 14562704), (8, 9101690), (10, 7281352), (13, 5601040), (16, 4550845), (20, 3640676), (26, 2800520), (40, 1820338), (52, 1400260), (53, 1373840), (65, 1120208), (80, 910169), (104, 700130), (106, 686920), (130, 560104), (208, 350065), (212, 343460), (260, 280052), (265, 274768), (424, 171730), (520, 140026), (530, 137384), (689, 105680), (848, 85865), (1040, 70013), (1060, 68692), (1321, 55120), (1378, 52840), (2120, 34346), (2642, 27560), (2756, 26420), (3445, 21136), (4240, 17173), (5284, 13780), (5512, 13210), (6605, 11024), (6890, 10568)]