81387300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{3821}}^1$

素因数の和:3909

約数の個数: 72

約数和(自身を含む): 238859712

約数和(自身を除く): 157472412

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 71, 75, 100, 142, 150, 213, 284, 300, 355, 426, 710, 852, 1065, 1420, 1775, 2130, 3550, 3821, 4260, 5325, 7100, 7642, 10650, 11463, 15284, 19105, 21300, 22926, 38210, 45852, 57315, 76420, 95525, 114630, 191050, 229260, 271291, 286575, 382100, 542582, 573150, 813873, 1085164, 1146300, 1356455, 1627746, 2712910, 3255492, 4069365, 5425820, 6782275, 8138730, 13564550, 16277460, 20346825, 27129100, 40693650, 81387300]

約数ペア:

[(1, 81387300), (2, 40693650), (3, 27129100), (4, 20346825), (5, 16277460), (6, 13564550), (10, 8138730), (12, 6782275), (15, 5425820), (20, 4069365), (25, 3255492), (30, 2712910), (50, 1627746), (60, 1356455), (71, 1146300), (75, 1085164), (100, 813873), (142, 573150), (150, 542582), (213, 382100), (284, 286575), (300, 271291), (355, 229260), (426, 191050), (710, 114630), (852, 95525), (1065, 76420), (1420, 57315), (1775, 45852), (2130, 38210), (3550, 22926), (3821, 21300), (4260, 19105), (5325, 15284), (7100, 11463), (7642, 10650)]