31044380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 71484336

約数和(自身を除く): 40439956

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 131, 164, 170, 205, 262, 289, 340, 410, 524, 578, 655, 697, 820, 1156, 1310, 1394, 1445, 2227, 2620, 2788, 2890, 3485, 4454, 5371, 5780, 6970, 8908, 10742, 11135, 11849, 13940, 21484, 22270, 23698, 26855, 37859, 44540, 47396, 53710, 59245, 75718, 91307, 107420, 118490, 151436, 182614, 189295, 236980, 365228, 378590, 456535, 757180, 913070, 1552219, 1826140, 3104438, 6208876, 7761095, 15522190, 31044380]

約数ペア:

[(1, 31044380), (2, 15522190), (4, 7761095), (5, 6208876), (10, 3104438), (17, 1826140), (20, 1552219), (34, 913070), (41, 757180), (68, 456535), (82, 378590), (85, 365228), (131, 236980), (164, 189295), (170, 182614), (205, 151436), (262, 118490), (289, 107420), (340, 91307), (410, 75718), (524, 59245), (578, 53710), (655, 47396), (697, 44540), (820, 37859), (1156, 26855), (1310, 23698), (1394, 22270), (1445, 21484), (2227, 13940), (2620, 11849), (2788, 11135), (2890, 10742), (3485, 8908), (4454, 6970), (5371, 5780)]