20293245.000000000

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2447}}^1$

素因数の和:2500

約数の個数: 128

約数和(自身を含む): 473776128

約数和(自身を除く): 320128998

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 23, 26, 30, 35, 39, 42, 46, 65, 69, 70, 78, 91, 105, 115, 130, 138, 161, 182, 195, 210, 230, 273, 299, 322, 345, 390, 455, 483, 546, 598, 690, 805, 897, 910, 966, 1365, 1495, 1610, 1794, 2093, 2415, 2447, 2730, 2990, 4186, 4485, 4830, 4894, 6279, 7341, 8970, 10465, 12235, 12558, 14682, 17129, 20930, 24470, 31395, 31811, 34258, 36705, 51387, 56281, 62790, 63622, 73410, 85645, 95433, 102774, 112562, 159055, 168843, 171290, 190866, 222677, 256935, 281405, 318110, 337686, 393967, 445354, 477165, 513870, 562810, 668031, 731653, 787934, 844215, 954330, 1113385, 1181901, 1336062, 1463306, 1688430, 1969835, 2194959, 2226770, 2363802, 3340155, 3658265, 3939670, 4389918, 5121571, 5909505, 6680310, 7316530, 10243142, 10974795, 11819010, 15364713, 21949590, 25607855, 30729426, 51215710, 76823565, 153647130]

約数ペア:

[(1, 153647130), (2, 76823565), (3, 51215710), (5, 30729426), (6, 25607855), (7, 21949590), (10, 15364713), (13, 11819010), (14, 10974795), (15, 10243142), (21, 7316530), (23, 6680310), (26, 5909505), (30, 5121571), (35, 4389918), (39, 3939670), (42, 3658265), (46, 3340155), (65, 2363802), (69, 2226770), (70, 2194959), (78, 1969835), (91, 1688430), (105, 1463306), (115, 1336062), (130, 1181901), (138, 1113385), (161, 954330), (182, 844215), (195, 787934), (210, 731653), (230, 668031), (273, 562810), (299, 513870), (322, 477165), (345, 445354), (390, 393967), (455, 337686), (483, 318110), (546, 281405), (598, 256935), (690, 222677), (805, 190866), (897, 171290), (910, 168843), (966, 159055), (1365, 112562), (1495, 102774), (1610, 95433), (1794, 85645), (2093, 73410), (2415, 63622), (2447, 62790), (2730, 56281), (2990, 51387), (4186, 36705), (4485, 34258), (4830, 31811), (4894, 31395), (6279, 24470), (7341, 20930), (8970, 17129), (10465, 14682), (12235, 12558)]