31380990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{823}}^1$

素因数の和:905

約数の個数: 64

約数和(自身を含む): 79736832

約数和(自身を除く): 48355842

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 41, 62, 82, 93, 123, 155, 186, 205, 246, 310, 410, 465, 615, 823, 930, 1230, 1271, 1646, 2469, 2542, 3813, 4115, 4938, 6355, 7626, 8230, 12345, 12710, 19065, 24690, 25513, 33743, 38130, 51026, 67486, 76539, 101229, 127565, 153078, 168715, 202458, 255130, 337430, 382695, 506145, 765390, 1012290, 1046033, 2092066, 3138099, 5230165, 6276198, 10460330, 15690495, 31380990]

約数ペア:

[(1, 31380990), (2, 15690495), (3, 10460330), (5, 6276198), (6, 5230165), (10, 3138099), (15, 2092066), (30, 1046033), (31, 1012290), (41, 765390), (62, 506145), (82, 382695), (93, 337430), (123, 255130), (155, 202458), (186, 168715), (205, 153078), (246, 127565), (310, 101229), (410, 76539), (465, 67486), (615, 51026), (823, 38130), (930, 33743), (1230, 25513), (1271, 24690), (1646, 19065), (2469, 12710), (2542, 12345), (3813, 8230), (4115, 7626), (4938, 6355)]