28314520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3203}}^1$

素因数の和:3244

約数の個数: 64

約数和(自身を含む): 72666720

約数和(自身を除く): 44352200

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 3203, 4420, 6406, 8840, 12812, 16015, 25624, 32030, 41639, 54451, 64060, 83278, 108902, 128120, 166556, 208195, 217804, 272255, 333112, 416390, 435608, 544510, 707863, 832780, 1089020, 1415726, 1665560, 2178040, 2831452, 3539315, 5662904, 7078630, 14157260, 28314520]

約数ペア:

[(1, 28314520), (2, 14157260), (4, 7078630), (5, 5662904), (8, 3539315), (10, 2831452), (13, 2178040), (17, 1665560), (20, 1415726), (26, 1089020), (34, 832780), (40, 707863), (52, 544510), (65, 435608), (68, 416390), (85, 333112), (104, 272255), (130, 217804), (136, 208195), (170, 166556), (221, 128120), (260, 108902), (340, 83278), (442, 64060), (520, 54451), (680, 41639), (884, 32030), (1105, 25624), (1768, 16015), (2210, 12812), (3203, 8840), (4420, 6406)]