28057380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2767}}^1$

素因数の和:2805

約数の個数: 72

約数和(自身を含む): 85099392

約数和(自身を除く): 57042012

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2535, 2767, 3380, 5070, 5534, 8301, 10140, 11068, 13835, 16602, 27670, 33204, 35971, 41505, 55340, 71942, 83010, 107913, 143884, 166020, 179855, 215826, 359710, 431652, 467623, 539565, 719420, 935246, 1079130, 1402869, 1870492, 2158260, 2338115, 2805738, 4676230, 5611476, 7014345, 9352460, 14028690, 28057380]

約数ペア:

[(1, 28057380), (2, 14028690), (3, 9352460), (4, 7014345), (5, 5611476), (6, 4676230), (10, 2805738), (12, 2338115), (13, 2158260), (15, 1870492), (20, 1402869), (26, 1079130), (30, 935246), (39, 719420), (52, 539565), (60, 467623), (65, 431652), (78, 359710), (130, 215826), (156, 179855), (169, 166020), (195, 143884), (260, 107913), (338, 83010), (390, 71942), (507, 55340), (676, 41505), (780, 35971), (845, 33204), (1014, 27670), (1690, 16602), (2028, 13835), (2535, 11068), (2767, 10140), (3380, 8301), (5070, 5534)]