204728960

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{607}}^1$

素因数の和:674

約数の個数: 128

約数和(自身を含む): 535818240

約数和(自身を除く): 331089280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 64, 68, 80, 85, 124, 128, 136, 155, 160, 170, 248, 272, 310, 320, 340, 496, 527, 544, 607, 620, 640, 680, 992, 1054, 1088, 1214, 1240, 1360, 1984, 2108, 2176, 2428, 2480, 2635, 2720, 3035, 3968, 4216, 4856, 4960, 5270, 5440, 6070, 8432, 9712, 9920, 10319, 10540, 10880, 12140, 16864, 18817, 19424, 19840, 20638, 21080, 24280, 33728, 37634, 38848, 41276, 42160, 48560, 51595, 67456, 75268, 77696, 82552, 84320, 94085, 97120, 103190, 150536, 165104, 168640, 188170, 194240, 206380, 301072, 319889, 330208, 337280, 376340, 388480, 412760, 602144, 639778, 660416, 752680, 825520, 1204288, 1279556, 1320832, 1505360, 1599445, 1651040, 2408576, 2559112, 3010720, 3198890, 3302080, 5118224, 6021440, 6397780, 6604160, 10236448, 12042880, 12795560, 20472896, 25591120, 40945792, 51182240, 102364480, 204728960]

約数ペア:

[(1, 204728960), (2, 102364480), (4, 51182240), (5, 40945792), (8, 25591120), (10, 20472896), (16, 12795560), (17, 12042880), (20, 10236448), (31, 6604160), (32, 6397780), (34, 6021440), (40, 5118224), (62, 3302080), (64, 3198890), (68, 3010720), (80, 2559112), (85, 2408576), (124, 1651040), (128, 1599445), (136, 1505360), (155, 1320832), (160, 1279556), (170, 1204288), (248, 825520), (272, 752680), (310, 660416), (320, 639778), (340, 602144), (496, 412760), (527, 388480), (544, 376340), (607, 337280), (620, 330208), (640, 319889), (680, 301072), (992, 206380), (1054, 194240), (1088, 188170), (1214, 168640), (1240, 165104), (1360, 150536), (1984, 103190), (2108, 97120), (2176, 94085), (2428, 84320), (2480, 82552), (2635, 77696), (2720, 75268), (3035, 67456), (3968, 51595), (4216, 48560), (4856, 42160), (4960, 41276), (5270, 38848), (5440, 37634), (6070, 33728), (8432, 24280), (9712, 21080), (9920, 20638), (10319, 19840), (10540, 19424), (10880, 18817), (12140, 16864)]