128646910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{491}}^1$

素因数の和:721

約数の個数: 64

約数和(自身を含む): 280558080

約数和(自身を除く): 151911170

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 197, 266, 394, 491, 665, 982, 985, 1330, 1379, 1970, 2455, 2758, 3437, 3743, 4910, 6874, 6895, 7486, 9329, 13790, 17185, 18658, 18715, 26201, 34370, 37430, 46645, 52402, 65303, 93290, 96727, 130606, 131005, 193454, 262010, 326515, 483635, 653030, 677089, 967270, 1354178, 1837813, 3385445, 3675626, 6770890, 9189065, 12864691, 18378130, 25729382, 64323455, 128646910]

約数ペア:

[(1, 128646910), (2, 64323455), (5, 25729382), (7, 18378130), (10, 12864691), (14, 9189065), (19, 6770890), (35, 3675626), (38, 3385445), (70, 1837813), (95, 1354178), (133, 967270), (190, 677089), (197, 653030), (266, 483635), (394, 326515), (491, 262010), (665, 193454), (982, 131005), (985, 130606), (1330, 96727), (1379, 93290), (1970, 65303), (2455, 52402), (2758, 46645), (3437, 37430), (3743, 34370), (4910, 26201), (6874, 18715), (6895, 18658), (7486, 17185), (9329, 13790)]