129506680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^3\times {\mathrm{659}}^1$

素因数の和:721

約数の個数: 64

約数和(自身を含む): 310068000

約数和(自身を除く): 180561320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 659, 680, 1156, 1318, 1445, 2312, 2636, 2890, 3295, 4913, 5272, 5780, 6590, 9826, 11203, 11560, 13180, 19652, 22406, 24565, 26360, 39304, 44812, 49130, 56015, 89624, 98260, 112030, 190451, 196520, 224060, 380902, 448120, 761804, 952255, 1523608, 1904510, 3237667, 3809020, 6475334, 7618040, 12950668, 16188335, 25901336, 32376670, 64753340, 129506680]

約数ペア:

[(1, 129506680), (2, 64753340), (4, 32376670), (5, 25901336), (8, 16188335), (10, 12950668), (17, 7618040), (20, 6475334), (34, 3809020), (40, 3237667), (68, 1904510), (85, 1523608), (136, 952255), (170, 761804), (289, 448120), (340, 380902), (578, 224060), (659, 196520), (680, 190451), (1156, 112030), (1318, 98260), (1445, 89624), (2312, 56015), (2636, 49130), (2890, 44812), (3295, 39304), (4913, 26360), (5272, 24565), (5780, 22406), (6590, 19652), (9826, 13180), (11203, 11560)]