87808980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{29867}}^1$

素因数の和:29893

約数の個数: 72

約数和(自身を含む): 286015968

約数和(自身を除く): 198206988

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 29867, 59734, 89601, 119468, 149335, 179202, 209069, 298670, 358404, 418138, 448005, 597340, 627207, 836276, 896010, 1045345, 1254414, 1463483, 1792020, 2090690, 2508828, 2926966, 3136035, 4181380, 4390449, 5853932, 6272070, 7317415, 8780898, 12544140, 14634830, 17561796, 21952245, 29269660, 43904490, 87808980]

約数ペア:

[(1, 87808980), (2, 43904490), (3, 29269660), (4, 21952245), (5, 17561796), (6, 14634830), (7, 12544140), (10, 8780898), (12, 7317415), (14, 6272070), (15, 5853932), (20, 4390449), (21, 4181380), (28, 3136035), (30, 2926966), (35, 2508828), (42, 2090690), (49, 1792020), (60, 1463483), (70, 1254414), (84, 1045345), (98, 896010), (105, 836276), (140, 627207), (147, 597340), (196, 448005), (210, 418138), (245, 358404), (294, 298670), (420, 209069), (490, 179202), (588, 149335), (735, 119468), (980, 89601), (1470, 59734), (2940, 29867)]