721824870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{80471}}^1$

素因数の和:80517

約数の個数: 64

約数和(自身を含む): 1946778624

約数和(自身を除く): 1224953754

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 46, 65, 69, 78, 115, 130, 138, 195, 230, 299, 345, 390, 598, 690, 897, 1495, 1794, 2990, 4485, 8970, 80471, 160942, 241413, 402355, 482826, 804710, 1046123, 1207065, 1850833, 2092246, 2414130, 3138369, 3701666, 5230615, 5552499, 6276738, 9254165, 10461230, 11104998, 15691845, 18508330, 24060829, 27762495, 31383690, 48121658, 55524990, 72182487, 120304145, 144364974, 240608290, 360912435, 721824870]

約数ペア:

[(1, 721824870), (2, 360912435), (3, 240608290), (5, 144364974), (6, 120304145), (10, 72182487), (13, 55524990), (15, 48121658), (23, 31383690), (26, 27762495), (30, 24060829), (39, 18508330), (46, 15691845), (65, 11104998), (69, 10461230), (78, 9254165), (115, 6276738), (130, 5552499), (138, 5230615), (195, 3701666), (230, 3138369), (299, 2414130), (345, 2092246), (390, 1850833), (598, 1207065), (690, 1046123), (897, 804710), (1495, 482826), (1794, 402355), (2990, 241413), (4485, 160942), (8970, 80471)]