81878040

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{683}}^1$

素因数の和:743

約数の個数: 160

約数和(自身を含む): 283052880

約数和(自身を除く): 201174840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 37, 40, 45, 54, 60, 72, 74, 81, 90, 108, 111, 120, 135, 148, 162, 180, 185, 216, 222, 270, 296, 324, 333, 360, 370, 405, 444, 540, 555, 648, 666, 683, 740, 810, 888, 999, 1080, 1110, 1332, 1366, 1480, 1620, 1665, 1998, 2049, 2220, 2664, 2732, 2997, 3240, 3330, 3415, 3996, 4098, 4440, 4995, 5464, 5994, 6147, 6660, 6830, 7992, 8196, 9990, 10245, 11988, 12294, 13320, 13660, 14985, 16392, 18441, 19980, 20490, 23976, 24588, 25271, 27320, 29970, 30735, 36882, 39960, 40980, 49176, 50542, 55323, 59940, 61470, 73764, 75813, 81960, 92205, 101084, 110646, 119880, 122940, 126355, 147528, 151626, 184410, 202168, 221292, 227439, 245880, 252710, 276615, 303252, 368820, 379065, 442584, 454878, 505420, 553230, 606504, 682317, 737640, 758130, 909756, 1010840, 1106460, 1137195, 1364634, 1516260, 1819512, 2046951, 2212920, 2274390, 2729268, 3032520, 3411585, 4093902, 4548780, 5458536, 6823170, 8187804, 9097560, 10234755, 13646340, 16375608, 20469510, 27292680, 40939020, 81878040]

約数ペア:

[(1, 81878040), (2, 40939020), (3, 27292680), (4, 20469510), (5, 16375608), (6, 13646340), (8, 10234755), (9, 9097560), (10, 8187804), (12, 6823170), (15, 5458536), (18, 4548780), (20, 4093902), (24, 3411585), (27, 3032520), (30, 2729268), (36, 2274390), (37, 2212920), (40, 2046951), (45, 1819512), (54, 1516260), (60, 1364634), (72, 1137195), (74, 1106460), (81, 1010840), (90, 909756), (108, 758130), (111, 737640), (120, 682317), (135, 606504), (148, 553230), (162, 505420), (180, 454878), (185, 442584), (216, 379065), (222, 368820), (270, 303252), (296, 276615), (324, 252710), (333, 245880), (360, 227439), (370, 221292), (405, 202168), (444, 184410), (540, 151626), (555, 147528), (648, 126355), (666, 122940), (683, 119880), (740, 110646), (810, 101084), (888, 92205), (999, 81960), (1080, 75813), (1110, 73764), (1332, 61470), (1366, 59940), (1480, 55323), (1620, 50542), (1665, 49176), (1998, 40980), (2049, 39960), (2220, 36882), (2664, 30735), (2732, 29970), (2997, 27320), (3240, 25271), (3330, 24588), (3415, 23976), (3996, 20490), (4098, 19980), (4440, 18441), (4995, 16392), (5464, 14985), (5994, 13660), (6147, 13320), (6660, 12294), (6830, 11988), (7992, 10245), (8196, 9990)]