68988640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1987}}^1$

素因数の和:2040

約数の個数: 96

約数和(自身を含む): 192374784

約数和(自身を除く): 123386144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 160, 217, 224, 248, 280, 310, 434, 496, 560, 620, 868, 992, 1085, 1120, 1240, 1736, 1987, 2170, 2480, 3472, 3974, 4340, 4960, 6944, 7948, 8680, 9935, 13909, 15896, 17360, 19870, 27818, 31792, 34720, 39740, 55636, 61597, 63584, 69545, 79480, 111272, 123194, 139090, 158960, 222544, 246388, 278180, 307985, 317920, 431179, 445088, 492776, 556360, 615970, 862358, 985552, 1112720, 1231940, 1724716, 1971104, 2155895, 2225440, 2463880, 3449432, 4311790, 4927760, 6898864, 8623580, 9855520, 13797728, 17247160, 34494320, 68988640]

約数ペア:

[(1, 68988640), (2, 34494320), (4, 17247160), (5, 13797728), (7, 9855520), (8, 8623580), (10, 6898864), (14, 4927760), (16, 4311790), (20, 3449432), (28, 2463880), (31, 2225440), (32, 2155895), (35, 1971104), (40, 1724716), (56, 1231940), (62, 1112720), (70, 985552), (80, 862358), (112, 615970), (124, 556360), (140, 492776), (155, 445088), (160, 431179), (217, 317920), (224, 307985), (248, 278180), (280, 246388), (310, 222544), (434, 158960), (496, 139090), (560, 123194), (620, 111272), (868, 79480), (992, 69545), (1085, 63584), (1120, 61597), (1240, 55636), (1736, 39740), (1987, 34720), (2170, 31792), (2480, 27818), (3472, 19870), (3974, 17360), (4340, 15896), (4960, 13909), (6944, 9935), (7948, 8680)]