391245720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1699}}^1$

素因数の和:1833

約数の個数: 128

約数和(自身を含む): 1248480000

約数和(自身を除く): 857234280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 101, 114, 120, 152, 190, 202, 228, 285, 303, 380, 404, 456, 505, 570, 606, 760, 808, 1010, 1140, 1212, 1515, 1699, 1919, 2020, 2280, 2424, 3030, 3398, 3838, 4040, 5097, 5757, 6060, 6796, 7676, 8495, 9595, 10194, 11514, 12120, 13592, 15352, 16990, 19190, 20388, 23028, 25485, 28785, 32281, 33980, 38380, 40776, 46056, 50970, 57570, 64562, 67960, 76760, 96843, 101940, 115140, 129124, 161405, 171599, 193686, 203880, 230280, 258248, 322810, 343198, 387372, 484215, 514797, 645620, 686396, 774744, 857995, 968430, 1029594, 1291240, 1372792, 1715990, 1936860, 2059188, 2573985, 3260381, 3431980, 3873720, 4118376, 5147970, 6520762, 6863960, 9781143, 10295940, 13041524, 16301905, 19562286, 20591880, 26083048, 32603810, 39124572, 48905715, 65207620, 78249144, 97811430, 130415240, 195622860, 391245720]

約数ペア:

[(1, 391245720), (2, 195622860), (3, 130415240), (4, 97811430), (5, 78249144), (6, 65207620), (8, 48905715), (10, 39124572), (12, 32603810), (15, 26083048), (19, 20591880), (20, 19562286), (24, 16301905), (30, 13041524), (38, 10295940), (40, 9781143), (57, 6863960), (60, 6520762), (76, 5147970), (95, 4118376), (101, 3873720), (114, 3431980), (120, 3260381), (152, 2573985), (190, 2059188), (202, 1936860), (228, 1715990), (285, 1372792), (303, 1291240), (380, 1029594), (404, 968430), (456, 857995), (505, 774744), (570, 686396), (606, 645620), (760, 514797), (808, 484215), (1010, 387372), (1140, 343198), (1212, 322810), (1515, 258248), (1699, 230280), (1919, 203880), (2020, 193686), (2280, 171599), (2424, 161405), (3030, 129124), (3398, 115140), (3838, 101940), (4040, 96843), (5097, 76760), (5757, 67960), (6060, 64562), (6796, 57570), (7676, 50970), (8495, 46056), (9595, 40776), (10194, 38380), (11514, 33980), (12120, 32281), (13592, 28785), (15352, 25485), (16990, 23028), (19190, 20388)]