20831460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1571}}^1$

素因数の和:1613

約数の個数: 96

約数和(自身を含む): 66552192

約数和(自身を除く): 45720732

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 195, 204, 221, 255, 260, 340, 390, 442, 510, 663, 780, 884, 1020, 1105, 1326, 1571, 2210, 2652, 3142, 3315, 4420, 4713, 6284, 6630, 7855, 9426, 13260, 15710, 18852, 20423, 23565, 26707, 31420, 40846, 47130, 53414, 61269, 80121, 81692, 94260, 102115, 106828, 122538, 133535, 160242, 204230, 245076, 267070, 306345, 320484, 347191, 400605, 408460, 534140, 612690, 694382, 801210, 1041573, 1225380, 1388764, 1602420, 1735955, 2083146, 3471910, 4166292, 5207865, 6943820, 10415730, 20831460]

約数ペア:

[(1, 20831460), (2, 10415730), (3, 6943820), (4, 5207865), (5, 4166292), (6, 3471910), (10, 2083146), (12, 1735955), (13, 1602420), (15, 1388764), (17, 1225380), (20, 1041573), (26, 801210), (30, 694382), (34, 612690), (39, 534140), (51, 408460), (52, 400605), (60, 347191), (65, 320484), (68, 306345), (78, 267070), (85, 245076), (102, 204230), (130, 160242), (156, 133535), (170, 122538), (195, 106828), (204, 102115), (221, 94260), (255, 81692), (260, 80121), (340, 61269), (390, 53414), (442, 47130), (510, 40846), (663, 31420), (780, 26707), (884, 23565), (1020, 20423), (1105, 18852), (1326, 15710), (1571, 13260), (2210, 9426), (2652, 7855), (3142, 6630), (3315, 6284), (4420, 4713)]