28215980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2309}}^1$

素因数の和:2378

約数の個数: 48

約数和(自身を含む): 65197440

約数和(自身を除く): 36981460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 2309, 2444, 3055, 4618, 6110, 9236, 11545, 12220, 23090, 30017, 46180, 60034, 108523, 120068, 150085, 217046, 300170, 434092, 542615, 600340, 1085230, 1410799, 2170460, 2821598, 5643196, 7053995, 14107990, 28215980]

約数ペア:

[(1, 28215980), (2, 14107990), (4, 7053995), (5, 5643196), (10, 2821598), (13, 2170460), (20, 1410799), (26, 1085230), (47, 600340), (52, 542615), (65, 434092), (94, 300170), (130, 217046), (188, 150085), (235, 120068), (260, 108523), (470, 60034), (611, 46180), (940, 30017), (1222, 23090), (2309, 12220), (2444, 11545), (3055, 9236), (4618, 6110)]