201457360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1997}}^1$

素因数の和:2120

約数の個数: 80

約数和(自身を含む): 509873616

約数和(自身を除く): 308416256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 97, 104, 130, 194, 208, 260, 388, 485, 520, 776, 970, 1040, 1261, 1552, 1940, 1997, 2522, 3880, 3994, 5044, 6305, 7760, 7988, 9985, 10088, 12610, 15976, 19970, 20176, 25220, 25961, 31952, 39940, 50440, 51922, 79880, 100880, 103844, 129805, 159760, 193709, 207688, 259610, 387418, 415376, 519220, 774836, 968545, 1038440, 1549672, 1937090, 2076880, 2518217, 3099344, 3874180, 5036434, 7748360, 10072868, 12591085, 15496720, 20145736, 25182170, 40291472, 50364340, 100728680, 201457360]

約数ペア:

[(1, 201457360), (2, 100728680), (4, 50364340), (5, 40291472), (8, 25182170), (10, 20145736), (13, 15496720), (16, 12591085), (20, 10072868), (26, 7748360), (40, 5036434), (52, 3874180), (65, 3099344), (80, 2518217), (97, 2076880), (104, 1937090), (130, 1549672), (194, 1038440), (208, 968545), (260, 774836), (388, 519220), (485, 415376), (520, 387418), (776, 259610), (970, 207688), (1040, 193709), (1261, 159760), (1552, 129805), (1940, 103844), (1997, 100880), (2522, 79880), (3880, 51922), (3994, 50440), (5044, 39940), (6305, 31952), (7760, 25961), (7988, 25220), (9985, 20176), (10088, 19970), (12610, 15976)]