71878275

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{971}}^1$

素因数の和:1041

約数の個数: 72

約数和(自身を含む): 150418944

約数和(自身を除く): 78540669

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 47, 63, 75, 105, 141, 175, 225, 235, 315, 329, 423, 525, 705, 971, 987, 1175, 1575, 1645, 2115, 2913, 2961, 3525, 4855, 4935, 6797, 8225, 8739, 10575, 14565, 14805, 20391, 24275, 24675, 33985, 43695, 45637, 61173, 72825, 74025, 101955, 136911, 169925, 218475, 228185, 305865, 319459, 410733, 509775, 684555, 958377, 1140925, 1529325, 1597295, 2053665, 2875131, 3422775, 4791885, 7986475, 10268325, 14375655, 23959425, 71878275]

約数ペア:

[(1, 71878275), (3, 23959425), (5, 14375655), (7, 10268325), (9, 7986475), (15, 4791885), (21, 3422775), (25, 2875131), (35, 2053665), (45, 1597295), (47, 1529325), (63, 1140925), (75, 958377), (105, 684555), (141, 509775), (175, 410733), (225, 319459), (235, 305865), (315, 228185), (329, 218475), (423, 169925), (525, 136911), (705, 101955), (971, 74025), (987, 72825), (1175, 61173), (1575, 45637), (1645, 43695), (2115, 33985), (2913, 24675), (2961, 24275), (3525, 20391), (4855, 14805), (4935, 14565), (6797, 10575), (8225, 8739)]