689791440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{221087}}^1$

素因数の和:221116

約数の個数: 80

約数和(自身を含む): 2302852608

約数和(自身を除く): 1613061168

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 221087, 442174, 663261, 884348, 1105435, 1326522, 1768696, 2210870, 2653044, 2874131, 3316305, 3537392, 4421740, 5306088, 5748262, 6632610, 8622393, 8843480, 10612176, 11496524, 13265220, 14370655, 17244786, 17686960, 22993048, 26530440, 28741310, 34489572, 43111965, 45986096, 53060880, 57482620, 68979144, 86223930, 114965240, 137958288, 172447860, 229930480, 344895720, 689791440]

約数ペア:

[(1, 689791440), (2, 344895720), (3, 229930480), (4, 172447860), (5, 137958288), (6, 114965240), (8, 86223930), (10, 68979144), (12, 57482620), (13, 53060880), (15, 45986096), (16, 43111965), (20, 34489572), (24, 28741310), (26, 26530440), (30, 22993048), (39, 17686960), (40, 17244786), (48, 14370655), (52, 13265220), (60, 11496524), (65, 10612176), (78, 8843480), (80, 8622393), (104, 6632610), (120, 5748262), (130, 5306088), (156, 4421740), (195, 3537392), (208, 3316305), (240, 2874131), (260, 2653044), (312, 2210870), (390, 1768696), (520, 1326522), (624, 1105435), (780, 884348), (1040, 663261), (1560, 442174), (3120, 221087)]