19809660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:367

約数の個数: 96

約数和(自身を含む): 60540480

約数和(自身を除く): 40730820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 109, 130, 156, 195, 218, 233, 260, 327, 390, 436, 466, 545, 654, 699, 780, 932, 1090, 1165, 1308, 1398, 1417, 1635, 2180, 2330, 2796, 2834, 3029, 3270, 3495, 4251, 4660, 5668, 6058, 6540, 6990, 7085, 8502, 9087, 12116, 13980, 14170, 15145, 17004, 18174, 21255, 25397, 28340, 30290, 36348, 42510, 45435, 50794, 60580, 76191, 85020, 90870, 101588, 126985, 152382, 181740, 253970, 304764, 330161, 380955, 507940, 660322, 761910, 990483, 1320644, 1523820, 1650805, 1980966, 3301610, 3961932, 4952415, 6603220, 9904830, 19809660]

約数ペア:

[(1, 19809660), (2, 9904830), (3, 6603220), (4, 4952415), (5, 3961932), (6, 3301610), (10, 1980966), (12, 1650805), (13, 1523820), (15, 1320644), (20, 990483), (26, 761910), (30, 660322), (39, 507940), (52, 380955), (60, 330161), (65, 304764), (78, 253970), (109, 181740), (130, 152382), (156, 126985), (195, 101588), (218, 90870), (233, 85020), (260, 76191), (327, 60580), (390, 50794), (436, 45435), (466, 42510), (545, 36348), (654, 30290), (699, 28340), (780, 25397), (932, 21255), (1090, 18174), (1165, 17004), (1308, 15145), (1398, 14170), (1417, 13980), (1635, 12116), (2180, 9087), (2330, 8502), (2796, 7085), (2834, 6990), (3029, 6540), (3270, 6058), (3495, 5668), (4251, 4660)]