203400080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{761}}^1$

素因数の和:1044

約数の個数: 80

約数和(自身を含む): 511935984

約数和(自身を除く): 308535904

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 257, 260, 514, 520, 761, 1028, 1040, 1285, 1522, 2056, 2570, 3044, 3341, 3805, 4112, 5140, 6088, 6682, 7610, 9893, 10280, 12176, 13364, 15220, 16705, 19786, 20560, 26728, 30440, 33410, 39572, 49465, 53456, 60880, 66820, 79144, 98930, 133640, 158288, 195577, 197860, 267280, 391154, 395720, 782308, 791440, 977885, 1564616, 1955770, 2542501, 3129232, 3911540, 5085002, 7823080, 10170004, 12712505, 15646160, 20340008, 25425010, 40680016, 50850020, 101700040, 203400080]

約数ペア:

[(1, 203400080), (2, 101700040), (4, 50850020), (5, 40680016), (8, 25425010), (10, 20340008), (13, 15646160), (16, 12712505), (20, 10170004), (26, 7823080), (40, 5085002), (52, 3911540), (65, 3129232), (80, 2542501), (104, 1955770), (130, 1564616), (208, 977885), (257, 791440), (260, 782308), (514, 395720), (520, 391154), (761, 267280), (1028, 197860), (1040, 195577), (1285, 158288), (1522, 133640), (2056, 98930), (2570, 79144), (3044, 66820), (3341, 60880), (3805, 53456), (4112, 49465), (5140, 39572), (6088, 33410), (6682, 30440), (7610, 26728), (9893, 20560), (10280, 19786), (12176, 16705), (13364, 15220)]