259991940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{333323}}^1$

素因数の和:333348

約数の個数: 48

約数和(自身を含む): 783978048

約数和(自身を除く): 523986108

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 333323, 666646, 999969, 1333292, 1666615, 1999938, 3333230, 3999876, 4333199, 4999845, 6666460, 8666398, 9999690, 12999597, 17332796, 19999380, 21665995, 25999194, 43331990, 51998388, 64997985, 86663980, 129995970, 259991940]

約数ペア:

[(1, 259991940), (2, 129995970), (3, 86663980), (4, 64997985), (5, 51998388), (6, 43331990), (10, 25999194), (12, 21665995), (13, 19999380), (15, 17332796), (20, 12999597), (26, 9999690), (30, 8666398), (39, 6666460), (52, 4999845), (60, 4333199), (65, 3999876), (78, 3333230), (130, 1999938), (156, 1666615), (195, 1333292), (260, 999969), (390, 666646), (780, 333323)]