20496490725

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{2161}}^1$

素因数の和:2407

約数の個数: 96

約数和(自身を含む): 36944671104

約数和(自身を除く): 16448180379

約数列:

[1, 3, 5, 15, 17, 25, 43, 51, 75, 85, 129, 173, 215, 255, 425, 519, 645, 731, 865, 1075, 1275, 2161, 2193, 2595, 2941, 3225, 3655, 4325, 6483, 7439, 8823, 10805, 10965, 12975, 14705, 18275, 22317, 32415, 36737, 37195, 44115, 54025, 54825, 73525, 92923, 110211, 111585, 126463, 162075, 183685, 185975, 220575, 278769, 373853, 379389, 464615, 551055, 557925, 632315, 918425, 1121559, 1393845, 1579691, 1869265, 1896945, 2323075, 2755275, 3161575, 4739073, 5607795, 6355501, 6969225, 7898455, 9346325, 9484725, 16075679, 19066503, 23695365, 28038975, 31777505, 39492275, 48227037, 80378395, 95332515, 118476825, 158887525, 241135185, 273286543, 401891975, 476662575, 819859629, 1205675925, 1366432715, 4099298145, 6832163575, 20496490725]

約数ペア:

[(1, 20496490725), (3, 6832163575), (5, 4099298145), (15, 1366432715), (17, 1205675925), (25, 819859629), (43, 476662575), (51, 401891975), (75, 273286543), (85, 241135185), (129, 158887525), (173, 118476825), (215, 95332515), (255, 80378395), (425, 48227037), (519, 39492275), (645, 31777505), (731, 28038975), (865, 23695365), (1075, 19066503), (1275, 16075679), (2161, 9484725), (2193, 9346325), (2595, 7898455), (2941, 6969225), (3225, 6355501), (3655, 5607795), (4325, 4739073), (6483, 3161575), (7439, 2755275), (8823, 2323075), (10805, 1896945), (10965, 1869265), (12975, 1579691), (14705, 1393845), (18275, 1121559), (22317, 918425), (32415, 632315), (36737, 557925), (37195, 551055), (44115, 464615), (54025, 379389), (54825, 373853), (73525, 278769), (92923, 220575), (110211, 185975), (111585, 183685), (126463, 162075)]