25413440

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:220

約数の個数: 112

約数和(自身を含む): 67208400

約数和(自身を除く): 41794960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 41, 52, 64, 65, 80, 82, 104, 130, 149, 160, 164, 205, 208, 260, 298, 320, 328, 410, 416, 520, 533, 596, 656, 745, 820, 832, 1040, 1066, 1192, 1312, 1490, 1640, 1937, 2080, 2132, 2384, 2624, 2665, 2980, 3280, 3874, 4160, 4264, 4768, 5330, 5960, 6109, 6560, 7748, 8528, 9536, 9685, 10660, 11920, 12218, 13120, 15496, 17056, 19370, 21320, 23840, 24436, 30545, 30992, 34112, 38740, 42640, 47680, 48872, 61090, 61984, 77480, 79417, 85280, 97744, 122180, 123968, 154960, 158834, 170560, 195488, 244360, 309920, 317668, 390976, 397085, 488720, 619840, 635336, 794170, 977440, 1270672, 1588340, 1954880, 2541344, 3176680, 5082688, 6353360, 12706720, 25413440]

約数ペア:

[(1, 25413440), (2, 12706720), (4, 6353360), (5, 5082688), (8, 3176680), (10, 2541344), (13, 1954880), (16, 1588340), (20, 1270672), (26, 977440), (32, 794170), (40, 635336), (41, 619840), (52, 488720), (64, 397085), (65, 390976), (80, 317668), (82, 309920), (104, 244360), (130, 195488), (149, 170560), (160, 158834), (164, 154960), (205, 123968), (208, 122180), (260, 97744), (298, 85280), (320, 79417), (328, 77480), (410, 61984), (416, 61090), (520, 48872), (533, 47680), (596, 42640), (656, 38740), (745, 34112), (820, 30992), (832, 30545), (1040, 24436), (1066, 23840), (1192, 21320), (1312, 19370), (1490, 17056), (1640, 15496), (1937, 13120), (2080, 12218), (2132, 11920), (2384, 10660), (2624, 9685), (2665, 9536), (2980, 8528), (3280, 7748), (3874, 6560), (4160, 6109), (4264, 5960), (4768, 5330)]