18406288

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{317}}^1$

素因数の和:535

約数の個数: 40

約数和(自身を含む): 37854720

約数和(自身を除く): 19448432

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 191, 304, 317, 382, 634, 764, 1268, 1528, 2536, 3056, 3629, 5072, 6023, 7258, 12046, 14516, 24092, 29032, 48184, 58064, 60547, 96368, 121094, 242188, 484376, 968752, 1150393, 2300786, 4601572, 9203144, 18406288]

約数ペア:

[(1, 18406288), (2, 9203144), (4, 4601572), (8, 2300786), (16, 1150393), (19, 968752), (38, 484376), (76, 242188), (152, 121094), (191, 96368), (304, 60547), (317, 58064), (382, 48184), (634, 29032), (764, 24092), (1268, 14516), (1528, 12046), (2536, 7258), (3056, 6023), (3629, 5072)]