228777680

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{683}}^1$

素因数の和:828

約数の個数: 80

約数和(自身を含む): 549607680

約数和(自身を除く): 320830000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 79, 80, 106, 158, 212, 265, 316, 395, 424, 530, 632, 683, 790, 848, 1060, 1264, 1366, 1580, 2120, 2732, 3160, 3415, 4187, 4240, 5464, 6320, 6830, 8374, 10928, 13660, 16748, 20935, 27320, 33496, 36199, 41870, 53957, 54640, 66992, 72398, 83740, 107914, 144796, 167480, 180995, 215828, 269785, 289592, 334960, 361990, 431656, 539570, 579184, 723980, 863312, 1079140, 1447960, 2158280, 2859721, 2895920, 4316560, 5719442, 11438884, 14298605, 22877768, 28597210, 45755536, 57194420, 114388840, 228777680]

約数ペア:

[(1, 228777680), (2, 114388840), (4, 57194420), (5, 45755536), (8, 28597210), (10, 22877768), (16, 14298605), (20, 11438884), (40, 5719442), (53, 4316560), (79, 2895920), (80, 2859721), (106, 2158280), (158, 1447960), (212, 1079140), (265, 863312), (316, 723980), (395, 579184), (424, 539570), (530, 431656), (632, 361990), (683, 334960), (790, 289592), (848, 269785), (1060, 215828), (1264, 180995), (1366, 167480), (1580, 144796), (2120, 107914), (2732, 83740), (3160, 72398), (3415, 66992), (4187, 54640), (4240, 53957), (5464, 41870), (6320, 36199), (6830, 33496), (8374, 27320), (10928, 20935), (13660, 16748)]