320425420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{521}}^1$

素因数の和:751

約数の個数: 96

約数和(自身を含む): 808206336

約数和(自身を除く): 487780916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 191, 230, 322, 382, 460, 521, 644, 764, 805, 955, 1042, 1337, 1610, 1910, 2084, 2605, 2674, 3220, 3647, 3820, 4393, 5210, 5348, 6685, 7294, 8786, 10420, 11983, 13370, 14588, 17572, 18235, 21965, 23966, 26740, 30751, 36470, 43930, 47932, 59915, 61502, 72940, 83881, 87860, 99511, 119830, 123004, 153755, 167762, 199022, 239660, 307510, 335524, 398044, 419405, 497555, 615020, 696577, 838810, 995110, 1393154, 1677620, 1990220, 2288753, 2786308, 3482885, 4577506, 6965770, 9155012, 11443765, 13931540, 16021271, 22887530, 32042542, 45775060, 64085084, 80106355, 160212710, 320425420]

約数ペア:

[(1, 320425420), (2, 160212710), (4, 80106355), (5, 64085084), (7, 45775060), (10, 32042542), (14, 22887530), (20, 16021271), (23, 13931540), (28, 11443765), (35, 9155012), (46, 6965770), (70, 4577506), (92, 3482885), (115, 2786308), (140, 2288753), (161, 1990220), (191, 1677620), (230, 1393154), (322, 995110), (382, 838810), (460, 696577), (521, 615020), (644, 497555), (764, 419405), (805, 398044), (955, 335524), (1042, 307510), (1337, 239660), (1610, 199022), (1910, 167762), (2084, 153755), (2605, 123004), (2674, 119830), (3220, 99511), (3647, 87860), (3820, 83881), (4393, 72940), (5210, 61502), (5348, 59915), (6685, 47932), (7294, 43930), (8786, 36470), (10420, 30751), (11983, 26740), (13370, 23966), (14588, 21965), (17572, 18235)]