251646220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2521}}^1$

素因数の和:2591

約数の個数: 96

約数和(自身を含む): 650797056

約数和(自身を除く): 399150836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 31, 35, 46, 62, 70, 92, 115, 124, 140, 155, 161, 217, 230, 310, 322, 434, 460, 620, 644, 713, 805, 868, 1085, 1426, 1610, 2170, 2521, 2852, 3220, 3565, 4340, 4991, 5042, 7130, 9982, 10084, 12605, 14260, 17647, 19964, 24955, 25210, 35294, 49910, 50420, 57983, 70588, 78151, 88235, 99820, 115966, 156302, 176470, 231932, 289915, 312604, 352940, 390755, 405881, 547057, 579830, 781510, 811762, 1094114, 1159660, 1563020, 1623524, 1797473, 2029405, 2188228, 2735285, 3594946, 4058810, 5470570, 7189892, 8117620, 8987365, 10941140, 12582311, 17974730, 25164622, 35949460, 50329244, 62911555, 125823110, 251646220]

約数ペア:

[(1, 251646220), (2, 125823110), (4, 62911555), (5, 50329244), (7, 35949460), (10, 25164622), (14, 17974730), (20, 12582311), (23, 10941140), (28, 8987365), (31, 8117620), (35, 7189892), (46, 5470570), (62, 4058810), (70, 3594946), (92, 2735285), (115, 2188228), (124, 2029405), (140, 1797473), (155, 1623524), (161, 1563020), (217, 1159660), (230, 1094114), (310, 811762), (322, 781510), (434, 579830), (460, 547057), (620, 405881), (644, 390755), (713, 352940), (805, 312604), (868, 289915), (1085, 231932), (1426, 176470), (1610, 156302), (2170, 115966), (2521, 99820), (2852, 88235), (3220, 78151), (3565, 70588), (4340, 57983), (4991, 50420), (5042, 49910), (7130, 35294), (9982, 25210), (10084, 24955), (12605, 19964), (14260, 17647)]