647558600

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{947}}^1$

素因数の和:1239

約数の個数: 96

約数和(自身を含む): 1629270720

約数和(自身を除く): 981712120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 263, 325, 520, 526, 650, 947, 1052, 1300, 1315, 1894, 2104, 2600, 2630, 3419, 3788, 4735, 5260, 6575, 6838, 7576, 9470, 10520, 12311, 13150, 13676, 17095, 18940, 23675, 24622, 26300, 27352, 34190, 37880, 47350, 49244, 52600, 61555, 68380, 85475, 94700, 98488, 123110, 136760, 170950, 189400, 246220, 249061, 307775, 341900, 492440, 498122, 615550, 683800, 996244, 1231100, 1245305, 1992488, 2462200, 2490610, 3237793, 4981220, 6226525, 6475586, 9962440, 12453050, 12951172, 16188965, 24906100, 25902344, 32377930, 49812200, 64755860, 80944825, 129511720, 161889650, 323779300, 647558600]

約数ペア:

[(1, 647558600), (2, 323779300), (4, 161889650), (5, 129511720), (8, 80944825), (10, 64755860), (13, 49812200), (20, 32377930), (25, 25902344), (26, 24906100), (40, 16188965), (50, 12951172), (52, 12453050), (65, 9962440), (100, 6475586), (104, 6226525), (130, 4981220), (200, 3237793), (260, 2490610), (263, 2462200), (325, 1992488), (520, 1245305), (526, 1231100), (650, 996244), (947, 683800), (1052, 615550), (1300, 498122), (1315, 492440), (1894, 341900), (2104, 307775), (2600, 249061), (2630, 246220), (3419, 189400), (3788, 170950), (4735, 136760), (5260, 123110), (6575, 98488), (6838, 94700), (7576, 85475), (9470, 68380), (10520, 61555), (12311, 52600), (13150, 49244), (13676, 47350), (17095, 37880), (18940, 34190), (23675, 27352), (24622, 26300)]