81279840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{541}}^1$

素因数の和:872

約数の個数: 96

約数和(自身を含む): 257324256

約数和(自身を除く): 176044416

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 313, 480, 541, 626, 939, 1082, 1252, 1565, 1623, 1878, 2164, 2504, 2705, 3130, 3246, 3756, 4328, 4695, 5008, 5410, 6260, 6492, 7512, 8115, 8656, 9390, 10016, 10820, 12520, 12984, 15024, 16230, 17312, 18780, 21640, 25040, 25968, 30048, 32460, 37560, 43280, 50080, 51936, 64920, 75120, 86560, 129840, 150240, 169333, 259680, 338666, 507999, 677332, 846665, 1015998, 1354664, 1693330, 2031996, 2539995, 2709328, 3386660, 4063992, 5079990, 5418656, 6773320, 8127984, 10159980, 13546640, 16255968, 20319960, 27093280, 40639920, 81279840]

約数ペア:

[(1, 81279840), (2, 40639920), (3, 27093280), (4, 20319960), (5, 16255968), (6, 13546640), (8, 10159980), (10, 8127984), (12, 6773320), (15, 5418656), (16, 5079990), (20, 4063992), (24, 3386660), (30, 2709328), (32, 2539995), (40, 2031996), (48, 1693330), (60, 1354664), (80, 1015998), (96, 846665), (120, 677332), (160, 507999), (240, 338666), (313, 259680), (480, 169333), (541, 150240), (626, 129840), (939, 86560), (1082, 75120), (1252, 64920), (1565, 51936), (1623, 50080), (1878, 43280), (2164, 37560), (2504, 32460), (2705, 30048), (3130, 25968), (3246, 25040), (3756, 21640), (4328, 18780), (4695, 17312), (5008, 16230), (5410, 15024), (6260, 12984), (6492, 12520), (7512, 10820), (8115, 10016), (8656, 9390)]