25696520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:135

約数の個数: 128

約数和(自身を含む): 67184640

約数和(自身を除く): 41488120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 31, 34, 40, 46, 53, 62, 68, 85, 92, 106, 115, 124, 136, 155, 170, 184, 212, 230, 248, 265, 310, 340, 391, 424, 460, 527, 530, 620, 680, 713, 782, 901, 920, 1054, 1060, 1219, 1240, 1426, 1564, 1643, 1802, 1955, 2108, 2120, 2438, 2635, 2852, 3128, 3286, 3565, 3604, 3910, 4216, 4505, 4876, 5270, 5704, 6095, 6572, 7130, 7208, 7820, 8215, 9010, 9752, 10540, 12121, 12190, 13144, 14260, 15640, 16430, 18020, 20723, 21080, 24242, 24380, 27931, 28520, 32860, 36040, 37789, 41446, 48484, 48760, 55862, 60605, 65720, 75578, 82892, 96968, 103615, 111724, 121210, 139655, 151156, 165784, 188945, 207230, 223448, 242420, 279310, 302312, 377890, 414460, 484840, 558620, 642413, 755780, 828920, 1117240, 1284826, 1511560, 2569652, 3212065, 5139304, 6424130, 12848260, 25696520]

約数ペア:

[(1, 25696520), (2, 12848260), (4, 6424130), (5, 5139304), (8, 3212065), (10, 2569652), (17, 1511560), (20, 1284826), (23, 1117240), (31, 828920), (34, 755780), (40, 642413), (46, 558620), (53, 484840), (62, 414460), (68, 377890), (85, 302312), (92, 279310), (106, 242420), (115, 223448), (124, 207230), (136, 188945), (155, 165784), (170, 151156), (184, 139655), (212, 121210), (230, 111724), (248, 103615), (265, 96968), (310, 82892), (340, 75578), (391, 65720), (424, 60605), (460, 55862), (527, 48760), (530, 48484), (620, 41446), (680, 37789), (713, 36040), (782, 32860), (901, 28520), (920, 27931), (1054, 24380), (1060, 24242), (1219, 21080), (1240, 20723), (1426, 18020), (1564, 16430), (1643, 15640), (1802, 14260), (1955, 13144), (2108, 12190), (2120, 12121), (2438, 10540), (2635, 9752), (2852, 9010), (3128, 8215), (3286, 7820), (3565, 7208), (3604, 7130), (3910, 6572), (4216, 6095), (4505, 5704), (4876, 5270)]