72172490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{12911}}^1$

素因数の和:12974

約数の個数: 32

約数和(自身を含む): 143168256

約数和(自身を除く): 70995766

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 2795, 5590, 12911, 25822, 64555, 129110, 167843, 335686, 555173, 839215, 1110346, 1678430, 2775865, 5551730, 7217249, 14434498, 36086245, 72172490]

約数ペア:

[(1, 72172490), (2, 36086245), (5, 14434498), (10, 7217249), (13, 5551730), (26, 2775865), (43, 1678430), (65, 1110346), (86, 839215), (130, 555173), (215, 335686), (430, 167843), (559, 129110), (1118, 64555), (2795, 25822), (5590, 12911)]