1515671820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{647723}}^1$

素因数の和:647751

約数の個数: 72

約数和(自身を含む): 4951202256

約数和(自身を除く): 3435530436

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 647723, 1295446, 1943169, 2590892, 3238615, 3886338, 5829507, 6477230, 7772676, 8420399, 9715845, 11659014, 12954460, 16840798, 19431690, 23318028, 25261197, 29147535, 33681596, 38863380, 42101995, 50522394, 58295070, 75783591, 84203990, 101044788, 116590140, 126305985, 151567182, 168407980, 252611970, 303134364, 378917955, 505223940, 757835910, 1515671820]

約数ペア:

[(1, 1515671820), (2, 757835910), (3, 505223940), (4, 378917955), (5, 303134364), (6, 252611970), (9, 168407980), (10, 151567182), (12, 126305985), (13, 116590140), (15, 101044788), (18, 84203990), (20, 75783591), (26, 58295070), (30, 50522394), (36, 42101995), (39, 38863380), (45, 33681596), (52, 29147535), (60, 25261197), (65, 23318028), (78, 19431690), (90, 16840798), (117, 12954460), (130, 11659014), (156, 9715845), (180, 8420399), (195, 7772676), (234, 6477230), (260, 5829507), (390, 3886338), (468, 3238615), (585, 2590892), (780, 1943169), (1170, 1295446), (2340, 647723)]