25344280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:149

約数の個数: 128

約数和(自身を含む): 67495680

約数和(自身を除く): 42151400

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 47, 52, 61, 65, 68, 85, 94, 104, 122, 130, 136, 170, 188, 221, 235, 244, 260, 305, 340, 376, 442, 470, 488, 520, 610, 611, 680, 793, 799, 884, 940, 1037, 1105, 1220, 1222, 1586, 1598, 1768, 1880, 2074, 2210, 2440, 2444, 2867, 3055, 3172, 3196, 3965, 3995, 4148, 4420, 4888, 5185, 5734, 6110, 6344, 6392, 7930, 7990, 8296, 8840, 10370, 10387, 11468, 12220, 13481, 14335, 15860, 15980, 20740, 20774, 22936, 24440, 26962, 28670, 31720, 31960, 37271, 41480, 41548, 48739, 51935, 53924, 57340, 67405, 74542, 83096, 97478, 103870, 107848, 114680, 134810, 149084, 186355, 194956, 207740, 243695, 269620, 298168, 372710, 389912, 415480, 487390, 539240, 633607, 745420, 974780, 1267214, 1490840, 1949560, 2534428, 3168035, 5068856, 6336070, 12672140, 25344280]

約数ペア:

[(1, 25344280), (2, 12672140), (4, 6336070), (5, 5068856), (8, 3168035), (10, 2534428), (13, 1949560), (17, 1490840), (20, 1267214), (26, 974780), (34, 745420), (40, 633607), (47, 539240), (52, 487390), (61, 415480), (65, 389912), (68, 372710), (85, 298168), (94, 269620), (104, 243695), (122, 207740), (130, 194956), (136, 186355), (170, 149084), (188, 134810), (221, 114680), (235, 107848), (244, 103870), (260, 97478), (305, 83096), (340, 74542), (376, 67405), (442, 57340), (470, 53924), (488, 51935), (520, 48739), (610, 41548), (611, 41480), (680, 37271), (793, 31960), (799, 31720), (884, 28670), (940, 26962), (1037, 24440), (1105, 22936), (1220, 20774), (1222, 20740), (1586, 15980), (1598, 15860), (1768, 14335), (1880, 13481), (2074, 12220), (2210, 11468), (2440, 10387), (2444, 10370), (2867, 8840), (3055, 8296), (3172, 7990), (3196, 7930), (3965, 6392), (3995, 6344), (4148, 6110), (4420, 5734), (4888, 5185)]