30281420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{31}}^1$

素因数の和:100

約数の個数: 108

約数和(自身を含む): 75507264

約数和(自身を除く): 45225844

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 31, 34, 52, 62, 65, 68, 85, 124, 130, 155, 169, 170, 221, 260, 289, 310, 338, 340, 403, 442, 527, 578, 620, 676, 806, 845, 884, 1054, 1105, 1156, 1445, 1612, 1690, 2015, 2108, 2210, 2635, 2873, 2890, 3380, 3757, 4030, 4420, 5239, 5270, 5746, 5780, 6851, 7514, 8060, 8959, 10478, 10540, 11492, 13702, 14365, 15028, 17918, 18785, 20956, 26195, 27404, 28730, 34255, 35836, 37570, 44795, 48841, 52390, 57460, 68510, 75140, 89063, 89590, 97682, 104780, 116467, 137020, 178126, 179180, 195364, 232934, 244205, 356252, 445315, 465868, 488410, 582335, 890630, 976820, 1164670, 1514071, 1781260, 2329340, 3028142, 6056284, 7570355, 15140710, 30281420]

約数ペア:

[(1, 30281420), (2, 15140710), (4, 7570355), (5, 6056284), (10, 3028142), (13, 2329340), (17, 1781260), (20, 1514071), (26, 1164670), (31, 976820), (34, 890630), (52, 582335), (62, 488410), (65, 465868), (68, 445315), (85, 356252), (124, 244205), (130, 232934), (155, 195364), (169, 179180), (170, 178126), (221, 137020), (260, 116467), (289, 104780), (310, 97682), (338, 89590), (340, 89063), (403, 75140), (442, 68510), (527, 57460), (578, 52390), (620, 48841), (676, 44795), (806, 37570), (845, 35836), (884, 34255), (1054, 28730), (1105, 27404), (1156, 26195), (1445, 20956), (1612, 18785), (1690, 17918), (2015, 15028), (2108, 14365), (2210, 13702), (2635, 11492), (2873, 10540), (2890, 10478), (3380, 8959), (3757, 8060), (4030, 7514), (4420, 6851), (5239, 5780), (5270, 5746)]