1815937060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{821}}^1$

素因数の和:942

約数の個数: 144

約数和(自身を含む): 4636297008

約数和(自身を除く): 2820359948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 61, 70, 74, 98, 122, 140, 148, 185, 196, 244, 245, 259, 305, 370, 427, 490, 518, 610, 740, 821, 854, 980, 1036, 1220, 1295, 1642, 1708, 1813, 2135, 2257, 2590, 2989, 3284, 3626, 4105, 4270, 4514, 5180, 5747, 5978, 7252, 8210, 8540, 9028, 9065, 11285, 11494, 11956, 14945, 15799, 16420, 18130, 22570, 22988, 28735, 29890, 30377, 31598, 36260, 40229, 45140, 50081, 57470, 59780, 60754, 63196, 78995, 80458, 100162, 110593, 114940, 121508, 151885, 157990, 160916, 200324, 201145, 212639, 221186, 250405, 303770, 315980, 350567, 402290, 425278, 442372, 500810, 552965, 607540, 701134, 804580, 850556, 1001620, 1063195, 1105930, 1402268, 1488473, 1752835, 1852997, 2126390, 2211860, 2453969, 2976946, 3505670, 3705994, 4252780, 4907938, 5953892, 7011340, 7411988, 7442365, 9264985, 9815876, 12269845, 12970979, 14884730, 18529970, 24539690, 25941958, 29769460, 37059940, 49079380, 51883916, 64854895, 90796853, 129709790, 181593706, 259419580, 363187412, 453984265, 907968530, 1815937060]

約数ペア:

[(1, 1815937060), (2, 907968530), (4, 453984265), (5, 363187412), (7, 259419580), (10, 181593706), (14, 129709790), (20, 90796853), (28, 64854895), (35, 51883916), (37, 49079380), (49, 37059940), (61, 29769460), (70, 25941958), (74, 24539690), (98, 18529970), (122, 14884730), (140, 12970979), (148, 12269845), (185, 9815876), (196, 9264985), (244, 7442365), (245, 7411988), (259, 7011340), (305, 5953892), (370, 4907938), (427, 4252780), (490, 3705994), (518, 3505670), (610, 2976946), (740, 2453969), (821, 2211860), (854, 2126390), (980, 1852997), (1036, 1752835), (1220, 1488473), (1295, 1402268), (1642, 1105930), (1708, 1063195), (1813, 1001620), (2135, 850556), (2257, 804580), (2590, 701134), (2989, 607540), (3284, 552965), (3626, 500810), (4105, 442372), (4270, 425278), (4514, 402290), (5180, 350567), (5747, 315980), (5978, 303770), (7252, 250405), (8210, 221186), (8540, 212639), (9028, 201145), (9065, 200324), (11285, 160916), (11494, 157990), (11956, 151885), (14945, 121508), (15799, 114940), (16420, 110593), (18130, 100162), (22570, 80458), (22988, 78995), (28735, 63196), (29890, 60754), (30377, 59780), (31598, 57470), (36260, 50081), (40229, 45140)]