1620181888

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{2503}}^1$

素因数の和:2919

約数の個数: 64

約数和(自身を含む): 3486319200

約数和(自身を除く): 1866137312

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 389, 416, 778, 832, 1556, 1664, 2503, 3112, 5006, 5057, 6224, 10012, 10114, 12448, 20024, 20228, 24896, 32539, 40048, 40456, 49792, 65078, 80096, 80912, 130156, 160192, 161824, 260312, 320384, 323648, 520624, 647296, 973667, 1041248, 1947334, 2082496, 3894668, 4164992, 7789336, 12657671, 15578672, 25315342, 31157344, 50630684, 62314688, 101261368, 124629376, 202522736, 405045472, 810090944, 1620181888]

約数ペア:

[(1, 1620181888), (2, 810090944), (4, 405045472), (8, 202522736), (13, 124629376), (16, 101261368), (26, 62314688), (32, 50630684), (52, 31157344), (64, 25315342), (104, 15578672), (128, 12657671), (208, 7789336), (389, 4164992), (416, 3894668), (778, 2082496), (832, 1947334), (1556, 1041248), (1664, 973667), (2503, 647296), (3112, 520624), (5006, 323648), (5057, 320384), (6224, 260312), (10012, 161824), (10114, 160192), (12448, 130156), (20024, 80912), (20228, 80096), (24896, 65078), (32539, 49792), (40048, 40456)]