21526240

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:204

約数の個数: 96

約数和(自身を含む): 54825120

約数和(自身を除く): 33298880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 73, 76, 80, 95, 97, 146, 152, 160, 190, 194, 292, 304, 365, 380, 388, 485, 584, 608, 730, 760, 776, 970, 1168, 1387, 1460, 1520, 1552, 1843, 1940, 2336, 2774, 2920, 3040, 3104, 3686, 3880, 5548, 5840, 6935, 7081, 7372, 7760, 9215, 11096, 11680, 13870, 14162, 14744, 15520, 18430, 22192, 27740, 28324, 29488, 35405, 36860, 44384, 55480, 56648, 58976, 70810, 73720, 110960, 113296, 134539, 141620, 147440, 221920, 226592, 269078, 283240, 294880, 538156, 566480, 672695, 1076312, 1132960, 1345390, 2152624, 2690780, 4305248, 5381560, 10763120, 21526240]

約数ペア:

[(1, 21526240), (2, 10763120), (4, 5381560), (5, 4305248), (8, 2690780), (10, 2152624), (16, 1345390), (19, 1132960), (20, 1076312), (32, 672695), (38, 566480), (40, 538156), (73, 294880), (76, 283240), (80, 269078), (95, 226592), (97, 221920), (146, 147440), (152, 141620), (160, 134539), (190, 113296), (194, 110960), (292, 73720), (304, 70810), (365, 58976), (380, 56648), (388, 55480), (485, 44384), (584, 36860), (608, 35405), (730, 29488), (760, 28324), (776, 27740), (970, 22192), (1168, 18430), (1387, 15520), (1460, 14744), (1520, 14162), (1552, 13870), (1843, 11680), (1940, 11096), (2336, 9215), (2774, 7760), (2920, 7372), (3040, 7081), (3104, 6935), (3686, 5840), (3880, 5548)]