2018763460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{72461}}^1$

素因数の和:72676

約数の個数: 48

約数和(自身を含む): 4869446400

約数和(自身を除く): 2850682940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1393, 1990, 2786, 3980, 5572, 6965, 13930, 27860, 72461, 144922, 289844, 362305, 507227, 724610, 1014454, 1449220, 2028908, 2536135, 5072270, 10144540, 14419739, 28839478, 57678956, 72098695, 100938173, 144197390, 201876346, 288394780, 403752692, 504690865, 1009381730, 2018763460]

約数ペア:

[(1, 2018763460), (2, 1009381730), (4, 504690865), (5, 403752692), (7, 288394780), (10, 201876346), (14, 144197390), (20, 100938173), (28, 72098695), (35, 57678956), (70, 28839478), (140, 14419739), (199, 10144540), (398, 5072270), (796, 2536135), (995, 2028908), (1393, 1449220), (1990, 1014454), (2786, 724610), (3980, 507227), (5572, 362305), (6965, 289844), (13930, 144922), (27860, 72461)]