71689340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:279

約数の個数: 72

約数和(自身を含む): 162980160

約数和(自身を除く): 91290820

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 79, 85, 157, 158, 170, 289, 314, 316, 340, 395, 578, 628, 785, 790, 1156, 1343, 1445, 1570, 1580, 2669, 2686, 2890, 3140, 5338, 5372, 5780, 6715, 10676, 12403, 13345, 13430, 22831, 24806, 26690, 26860, 45373, 45662, 49612, 53380, 62015, 90746, 91324, 114155, 124030, 181492, 210851, 226865, 228310, 248060, 421702, 453730, 456620, 843404, 907460, 1054255, 2108510, 3584467, 4217020, 7168934, 14337868, 17922335, 35844670, 71689340]

約数ペア:

[(1, 71689340), (2, 35844670), (4, 17922335), (5, 14337868), (10, 7168934), (17, 4217020), (20, 3584467), (34, 2108510), (68, 1054255), (79, 907460), (85, 843404), (157, 456620), (158, 453730), (170, 421702), (289, 248060), (314, 228310), (316, 226865), (340, 210851), (395, 181492), (578, 124030), (628, 114155), (785, 91324), (790, 90746), (1156, 62015), (1343, 53380), (1445, 49612), (1570, 45662), (1580, 45373), (2669, 26860), (2686, 26690), (2890, 24806), (3140, 22831), (5338, 13430), (5372, 13345), (5780, 12403), (6715, 10676)]