19973880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{491}}^1$

素因数の和:621

約数の個数: 96

約数和(自身を含む): 65622960

約数和(自身を除く): 45649080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 113, 120, 180, 226, 339, 360, 452, 491, 565, 678, 904, 982, 1017, 1130, 1356, 1473, 1695, 1964, 2034, 2260, 2455, 2712, 2946, 3390, 3928, 4068, 4419, 4520, 4910, 5085, 5892, 6780, 7365, 8136, 8838, 9820, 10170, 11784, 13560, 14730, 17676, 19640, 20340, 22095, 29460, 35352, 40680, 44190, 55483, 58920, 88380, 110966, 166449, 176760, 221932, 277415, 332898, 443864, 499347, 554830, 665796, 832245, 998694, 1109660, 1331592, 1664490, 1997388, 2219320, 2496735, 3328980, 3994776, 4993470, 6657960, 9986940, 19973880]

約数ペア:

[(1, 19973880), (2, 9986940), (3, 6657960), (4, 4993470), (5, 3994776), (6, 3328980), (8, 2496735), (9, 2219320), (10, 1997388), (12, 1664490), (15, 1331592), (18, 1109660), (20, 998694), (24, 832245), (30, 665796), (36, 554830), (40, 499347), (45, 443864), (60, 332898), (72, 277415), (90, 221932), (113, 176760), (120, 166449), (180, 110966), (226, 88380), (339, 58920), (360, 55483), (452, 44190), (491, 40680), (565, 35352), (678, 29460), (904, 22095), (982, 20340), (1017, 19640), (1130, 17676), (1356, 14730), (1473, 13560), (1695, 11784), (1964, 10170), (2034, 9820), (2260, 8838), (2455, 8136), (2712, 7365), (2946, 6780), (3390, 5892), (3928, 5085), (4068, 4910), (4419, 4520)]