1660755320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{601}}^1$

素因数の和:829

約数の個数: 128

約数和(自身を含む): 4369075200

約数和(自身を除く): 2708319880

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, 601, 695, 710, 973, 994, 1112, 1202, 1390, 1420, 1946, 1988, 2404, 2485, 2780, 2840, 3005, 3892, 3976, 4207, 4808, 4865, 4970, 5560, 6010, 7784, 8414, 9730, 9869, 9940, 12020, 16828, 19460, 19738, 19880, 21035, 24040, 33656, 38920, 39476, 42070, 42671, 49345, 69083, 78952, 83539, 84140, 85342, 98690, 138166, 167078, 168280, 170684, 197380, 213355, 276332, 298697, 334156, 341368, 345415, 394760, 417695, 426710, 552664, 584773, 597394, 668312, 690830, 835390, 853420, 1169546, 1194788, 1381660, 1493485, 1670780, 1706840, 2339092, 2389576, 2763320, 2923865, 2986970, 3341560, 4678184, 5847730, 5931269, 5973940, 11695460, 11862538, 11947880, 23390920, 23725076, 29656345, 41518883, 47450152, 59312690, 83037766, 118625380, 166075532, 207594415, 237250760, 332151064, 415188830, 830377660, 1660755320]

約数ペア:

[(1, 1660755320), (2, 830377660), (4, 415188830), (5, 332151064), (7, 237250760), (8, 207594415), (10, 166075532), (14, 118625380), (20, 83037766), (28, 59312690), (35, 47450152), (40, 41518883), (56, 29656345), (70, 23725076), (71, 23390920), (139, 11947880), (140, 11862538), (142, 11695460), (278, 5973940), (280, 5931269), (284, 5847730), (355, 4678184), (497, 3341560), (556, 2986970), (568, 2923865), (601, 2763320), (695, 2389576), (710, 2339092), (973, 1706840), (994, 1670780), (1112, 1493485), (1202, 1381660), (1390, 1194788), (1420, 1169546), (1946, 853420), (1988, 835390), (2404, 690830), (2485, 668312), (2780, 597394), (2840, 584773), (3005, 552664), (3892, 426710), (3976, 417695), (4207, 394760), (4808, 345415), (4865, 341368), (4970, 334156), (5560, 298697), (6010, 276332), (7784, 213355), (8414, 197380), (9730, 170684), (9869, 168280), (9940, 167078), (12020, 138166), (16828, 98690), (19460, 85342), (19738, 84140), (19880, 83539), (21035, 78952), (24040, 69083), (33656, 49345), (38920, 42671), (39476, 42070)]