40639920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{541}}^1$

素因数の和:870

約数の個数: 80

約数和(自身を含む): 126619872

約数和(自身を除く): 85979952

約数列:

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

約数ペア:

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