217876420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1163}}^1$

素因数の和:1237

約数の個数: 96

約数和(自身を含む): 527990400

約数和(自身を除く): 310113980

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 29, 34, 38, 58, 68, 76, 85, 95, 116, 145, 170, 190, 290, 323, 340, 380, 493, 551, 580, 646, 986, 1102, 1163, 1292, 1615, 1972, 2204, 2326, 2465, 2755, 3230, 4652, 4930, 5510, 5815, 6460, 9367, 9860, 11020, 11630, 18734, 19771, 22097, 23260, 33727, 37468, 39542, 44194, 46835, 67454, 79084, 88388, 93670, 98855, 110485, 134908, 168635, 187340, 197710, 220970, 337270, 375649, 395420, 441940, 573359, 640813, 674540, 751298, 1146718, 1281626, 1502596, 1878245, 2293436, 2563252, 2866795, 3204065, 3756490, 5733590, 6408130, 7512980, 10893821, 11467180, 12816260, 21787642, 43575284, 54469105, 108938210, 217876420]

約数ペア:

[(1, 217876420), (2, 108938210), (4, 54469105), (5, 43575284), (10, 21787642), (17, 12816260), (19, 11467180), (20, 10893821), (29, 7512980), (34, 6408130), (38, 5733590), (58, 3756490), (68, 3204065), (76, 2866795), (85, 2563252), (95, 2293436), (116, 1878245), (145, 1502596), (170, 1281626), (190, 1146718), (290, 751298), (323, 674540), (340, 640813), (380, 573359), (493, 441940), (551, 395420), (580, 375649), (646, 337270), (986, 220970), (1102, 197710), (1163, 187340), (1292, 168635), (1615, 134908), (1972, 110485), (2204, 98855), (2326, 93670), (2465, 88388), (2755, 79084), (3230, 67454), (4652, 46835), (4930, 44194), (5510, 39542), (5815, 37468), (6460, 33727), (9367, 23260), (9860, 22097), (11020, 19771), (11630, 18734)]