71420280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1$

素因数の和:381

約数の個数: 128

約数和(自身を含む): 225054720

約数和(自身を除く): 153634440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 73, 93, 120, 124, 146, 155, 186, 219, 248, 263, 292, 310, 365, 372, 438, 465, 526, 584, 620, 730, 744, 789, 876, 930, 1052, 1095, 1240, 1315, 1460, 1578, 1752, 1860, 2104, 2190, 2263, 2630, 2920, 3156, 3720, 3945, 4380, 4526, 5260, 6312, 6789, 7890, 8153, 8760, 9052, 10520, 11315, 13578, 15780, 16306, 18104, 19199, 22630, 24459, 27156, 31560, 32612, 33945, 38398, 40765, 45260, 48918, 54312, 57597, 65224, 67890, 76796, 81530, 90520, 95995, 97836, 115194, 122295, 135780, 153592, 163060, 191990, 195672, 230388, 244590, 271560, 287985, 326120, 383980, 460776, 489180, 575970, 595169, 767960, 978360, 1151940, 1190338, 1785507, 2303880, 2380676, 2975845, 3571014, 4761352, 5951690, 7142028, 8927535, 11903380, 14284056, 17855070, 23806760, 35710140, 71420280]

約数ペア:

[(1, 71420280), (2, 35710140), (3, 23806760), (4, 17855070), (5, 14284056), (6, 11903380), (8, 8927535), (10, 7142028), (12, 5951690), (15, 4761352), (20, 3571014), (24, 2975845), (30, 2380676), (31, 2303880), (40, 1785507), (60, 1190338), (62, 1151940), (73, 978360), (93, 767960), (120, 595169), (124, 575970), (146, 489180), (155, 460776), (186, 383980), (219, 326120), (248, 287985), (263, 271560), (292, 244590), (310, 230388), (365, 195672), (372, 191990), (438, 163060), (465, 153592), (526, 135780), (584, 122295), (620, 115194), (730, 97836), (744, 95995), (789, 90520), (876, 81530), (930, 76796), (1052, 67890), (1095, 65224), (1240, 57597), (1315, 54312), (1460, 48918), (1578, 45260), (1752, 40765), (1860, 38398), (2104, 33945), (2190, 32612), (2263, 31560), (2630, 27156), (2920, 24459), (3156, 22630), (3720, 19199), (3945, 18104), (4380, 16306), (4526, 15780), (5260, 13578), (6312, 11315), (6789, 10520), (7890, 9052), (8153, 8760)]