20870928

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{11149}}^1$

素因数の和:11176

約数の個数: 60

約数和(自身を含む): 62908300

約数和(自身を除く): 42037372

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872, 11149, 22298, 33447, 44596, 66894, 89192, 100341, 133788, 144937, 178384, 200682, 267576, 289874, 401364, 434811, 535152, 579748, 802728, 869622, 1159496, 1304433, 1605456, 1739244, 2318992, 2608866, 3478488, 5217732, 6956976, 10435464, 20870928]

約数ペア:

[(1, 20870928), (2, 10435464), (3, 6956976), (4, 5217732), (6, 3478488), (8, 2608866), (9, 2318992), (12, 1739244), (13, 1605456), (16, 1304433), (18, 1159496), (24, 869622), (26, 802728), (36, 579748), (39, 535152), (48, 434811), (52, 401364), (72, 289874), (78, 267576), (104, 200682), (117, 178384), (144, 144937), (156, 133788), (208, 100341), (234, 89192), (312, 66894), (468, 44596), (624, 33447), (936, 22298), (1872, 11149)]