81228060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14557}}^1$

素因数の和:14603

約数の個数: 72

約数和(自身を含む): 254357376

約数和(自身を除く): 173129316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 14557, 29114, 43671, 58228, 72785, 87342, 131013, 145570, 174684, 218355, 262026, 291140, 436710, 451267, 524052, 655065, 873420, 902534, 1310130, 1353801, 1805068, 2256335, 2620260, 2707602, 4061403, 4512670, 5415204, 6769005, 8122806, 9025340, 13538010, 16245612, 20307015, 27076020, 40614030, 81228060]

約数ペア:

[(1, 81228060), (2, 40614030), (3, 27076020), (4, 20307015), (5, 16245612), (6, 13538010), (9, 9025340), (10, 8122806), (12, 6769005), (15, 5415204), (18, 4512670), (20, 4061403), (30, 2707602), (31, 2620260), (36, 2256335), (45, 1805068), (60, 1353801), (62, 1310130), (90, 902534), (93, 873420), (124, 655065), (155, 524052), (180, 451267), (186, 436710), (279, 291140), (310, 262026), (372, 218355), (465, 174684), (558, 145570), (620, 131013), (930, 87342), (1116, 72785), (1395, 58228), (1860, 43671), (2790, 29114), (5580, 14557)]