61508739880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{22259}}^1$

素因数の和:22487

約数の個数: 128

約数和(自身を含む): 161554176000

約数和(自身を除く): 100045436120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 139, 140, 142, 278, 280, 284, 355, 497, 556, 568, 695, 710, 973, 994, 1112, 1390, 1420, 1946, 1988, 2485, 2780, 2840, 3892, 3976, 4865, 4970, 5560, 7784, 9730, 9869, 9940, 19460, 19738, 19880, 22259, 38920, 39476, 44518, 49345, 69083, 78952, 89036, 98690, 111295, 138166, 155813, 178072, 197380, 222590, 276332, 311626, 345415, 394760, 445180, 552664, 623252, 690830, 779065, 890360, 1246504, 1381660, 1558130, 1580389, 2763320, 3094001, 3116260, 3160778, 6188002, 6232520, 6321556, 7901945, 11062723, 12376004, 12643112, 15470005, 15803890, 21658007, 22125446, 24752008, 30940010, 31607780, 43316014, 44250892, 55313615, 61880020, 63215560, 86632028, 88501784, 108290035, 110627230, 123760040, 173264056, 216580070, 219674071, 221254460, 433160140, 439348142, 442508920, 866320280, 878696284, 1098370355, 1537718497, 1757392568, 2196740710, 3075436994, 4393481420, 6150873988, 7688592485, 8786962840, 12301747976, 15377184970, 30754369940, 61508739880]

約数ペア:

[(1, 61508739880), (2, 30754369940), (4, 15377184970), (5, 12301747976), (7, 8786962840), (8, 7688592485), (10, 6150873988), (14, 4393481420), (20, 3075436994), (28, 2196740710), (35, 1757392568), (40, 1537718497), (56, 1098370355), (70, 878696284), (71, 866320280), (139, 442508920), (140, 439348142), (142, 433160140), (278, 221254460), (280, 219674071), (284, 216580070), (355, 173264056), (497, 123760040), (556, 110627230), (568, 108290035), (695, 88501784), (710, 86632028), (973, 63215560), (994, 61880020), (1112, 55313615), (1390, 44250892), (1420, 43316014), (1946, 31607780), (1988, 30940010), (2485, 24752008), (2780, 22125446), (2840, 21658007), (3892, 15803890), (3976, 15470005), (4865, 12643112), (4970, 12376004), (5560, 11062723), (7784, 7901945), (9730, 6321556), (9869, 6232520), (9940, 6188002), (19460, 3160778), (19738, 3116260), (19880, 3094001), (22259, 2763320), (38920, 1580389), (39476, 1558130), (44518, 1381660), (49345, 1246504), (69083, 890360), (78952, 779065), (89036, 690830), (98690, 623252), (111295, 552664), (138166, 445180), (155813, 394760), (178072, 345415), (197380, 311626), (222590, 276332)]