20009968970

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1\times {\mathrm{3631}}^1$

素因数の和:4311

約数の個数: 64

約数和(自身を含む): 38535229440

約数和(自身を除く): 18525260470

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 145, 155, 290, 310, 613, 899, 1226, 1798, 3065, 3631, 4495, 6130, 7262, 8990, 17777, 18155, 19003, 35554, 36310, 38006, 88885, 95015, 105299, 112561, 177770, 190030, 210598, 225122, 526495, 551087, 562805, 1052990, 1102174, 1125610, 2225803, 2755435, 3264269, 4451606, 5510870, 6528538, 11129015, 16321345, 22258030, 32642690, 64548287, 68999893, 129096574, 137999786, 322741435, 344999465, 645482870, 689998930, 2000996897, 4001993794, 10004984485, 20009968970]

約数ペア:

[(1, 20009968970), (2, 10004984485), (5, 4001993794), (10, 2000996897), (29, 689998930), (31, 645482870), (58, 344999465), (62, 322741435), (145, 137999786), (155, 129096574), (290, 68999893), (310, 64548287), (613, 32642690), (899, 22258030), (1226, 16321345), (1798, 11129015), (3065, 6528538), (3631, 5510870), (4495, 4451606), (6130, 3264269), (7262, 2755435), (8990, 2225803), (17777, 1125610), (18155, 1102174), (19003, 1052990), (35554, 562805), (36310, 551087), (38006, 526495), (88885, 225122), (95015, 210598), (105299, 190030), (112561, 177770)]