19920420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8513}}^1$

素因数の和:8541

約数の個数: 72

約数和(自身を含む): 65081016

約数和(自身を除く): 45160596

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8513, 17026, 25539, 34052, 42565, 51078, 76617, 85130, 102156, 110669, 127695, 153234, 170260, 221338, 255390, 306468, 332007, 383085, 442676, 510780, 553345, 664014, 766170, 996021, 1106690, 1328028, 1532340, 1660035, 1992042, 2213380, 3320070, 3984084, 4980105, 6640140, 9960210, 19920420]

約数ペア:

[(1, 19920420), (2, 9960210), (3, 6640140), (4, 4980105), (5, 3984084), (6, 3320070), (9, 2213380), (10, 1992042), (12, 1660035), (13, 1532340), (15, 1328028), (18, 1106690), (20, 996021), (26, 766170), (30, 664014), (36, 553345), (39, 510780), (45, 442676), (52, 383085), (60, 332007), (65, 306468), (78, 255390), (90, 221338), (117, 170260), (130, 153234), (156, 127695), (180, 110669), (195, 102156), (234, 85130), (260, 76617), (390, 51078), (468, 42565), (585, 34052), (780, 25539), (1170, 17026), (2340, 8513)]