205674920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:259

約数の個数: 128

約数和(自身を含む): 524966400

約数和(自身を除く): 319291480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 61, 79, 88, 97, 110, 122, 158, 194, 220, 244, 305, 316, 388, 395, 440, 485, 488, 610, 632, 671, 776, 790, 869, 970, 1067, 1220, 1342, 1580, 1738, 1940, 2134, 2440, 2684, 3160, 3355, 3476, 3880, 4268, 4345, 4819, 5335, 5368, 5917, 6710, 6952, 7663, 8536, 8690, 9638, 10670, 11834, 13420, 15326, 17380, 19276, 21340, 23668, 24095, 26840, 29585, 30652, 34760, 38315, 38552, 42680, 47336, 48190, 53009, 59170, 61304, 65087, 76630, 84293, 96380, 106018, 118340, 130174, 153260, 168586, 192760, 212036, 236680, 260348, 265045, 306520, 325435, 337172, 421465, 424072, 467443, 520696, 530090, 650870, 674344, 842930, 934886, 1060180, 1301740, 1685860, 1869772, 2120360, 2337215, 2603480, 3371720, 3739544, 4674430, 5141873, 9348860, 10283746, 18697720, 20567492, 25709365, 41134984, 51418730, 102837460, 205674920]

約数ペア:

[(1, 205674920), (2, 102837460), (4, 51418730), (5, 41134984), (8, 25709365), (10, 20567492), (11, 18697720), (20, 10283746), (22, 9348860), (40, 5141873), (44, 4674430), (55, 3739544), (61, 3371720), (79, 2603480), (88, 2337215), (97, 2120360), (110, 1869772), (122, 1685860), (158, 1301740), (194, 1060180), (220, 934886), (244, 842930), (305, 674344), (316, 650870), (388, 530090), (395, 520696), (440, 467443), (485, 424072), (488, 421465), (610, 337172), (632, 325435), (671, 306520), (776, 265045), (790, 260348), (869, 236680), (970, 212036), (1067, 192760), (1220, 168586), (1342, 153260), (1580, 130174), (1738, 118340), (1940, 106018), (2134, 96380), (2440, 84293), (2684, 76630), (3160, 65087), (3355, 61304), (3476, 59170), (3880, 53009), (4268, 48190), (4345, 47336), (4819, 42680), (5335, 38552), (5368, 38315), (5917, 34760), (6710, 30652), (6952, 29585), (7663, 26840), (8536, 24095), (8690, 23668), (9638, 21340), (10670, 19276), (11834, 17380), (13420, 15326)]