387776240

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{61357}}^1$

素因数の和:61449

約数の個数: 40

約数和(自身を含む): 913007040

約数和(自身を除く): 525230800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 61357, 122714, 245428, 306785, 490856, 613570, 981712, 1227140, 2454280, 4847203, 4908560, 9694406, 19388812, 24236015, 38777624, 48472030, 77555248, 96944060, 193888120, 387776240]

約数ペア:

[(1, 387776240), (2, 193888120), (4, 96944060), (5, 77555248), (8, 48472030), (10, 38777624), (16, 24236015), (20, 19388812), (40, 9694406), (79, 4908560), (80, 4847203), (158, 2454280), (316, 1227140), (395, 981712), (632, 613570), (790, 490856), (1264, 306785), (1580, 245428), (3160, 122714), (6320, 61357)]