408550240

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{41}}^2$

素因数の和:142

約数の個数: 216

約数和(自身を含む): 1187960256

約数和(自身を除く): 779410016

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 41, 49, 56, 62, 70, 80, 82, 98, 112, 124, 140, 155, 160, 164, 196, 205, 217, 224, 245, 248, 280, 287, 310, 328, 392, 410, 434, 490, 496, 560, 574, 620, 656, 784, 820, 868, 980, 992, 1085, 1120, 1148, 1240, 1271, 1312, 1435, 1519, 1568, 1640, 1681, 1736, 1960, 2009, 2170, 2296, 2480, 2542, 2870, 3038, 3280, 3362, 3472, 3920, 4018, 4340, 4592, 4960, 5084, 5740, 6076, 6355, 6560, 6724, 6944, 7595, 7840, 8036, 8405, 8680, 8897, 9184, 10045, 10168, 11480, 11767, 12152, 12710, 13448, 15190, 16072, 16810, 17360, 17794, 20090, 20336, 22960, 23534, 24304, 25420, 26896, 30380, 32144, 33620, 34720, 35588, 40180, 40672, 44485, 45920, 47068, 48608, 50840, 52111, 53792, 58835, 60760, 62279, 64288, 67240, 71176, 80360, 82369, 88970, 94136, 101680, 104222, 117670, 121520, 124558, 134480, 142352, 160720, 164738, 177940, 188272, 203360, 208444, 235340, 243040, 249116, 260555, 268960, 284704, 311395, 321440, 329476, 355880, 364777, 376544, 411845, 416888, 470680, 498232, 521110, 622790, 658952, 711760, 729554, 823690, 833776, 941360, 996464, 1042220, 1245580, 1317904, 1423520, 1459108, 1647380, 1667552, 1823885, 1882720, 1992928, 2084440, 2491160, 2553439, 2635808, 2918216, 3294760, 3647770, 4168880, 4982320, 5106878, 5836432, 6589520, 7295540, 8337760, 9964640, 10213756, 11672864, 12767195, 13179040, 14591080, 20427512, 25534390, 29182160, 40855024, 51068780, 58364320, 81710048, 102137560, 204275120, 408550240]

約数ペア:

[(1, 408550240), (2, 204275120), (4, 102137560), (5, 81710048), (7, 58364320), (8, 51068780), (10, 40855024), (14, 29182160), (16, 25534390), (20, 20427512), (28, 14591080), (31, 13179040), (32, 12767195), (35, 11672864), (40, 10213756), (41, 9964640), (49, 8337760), (56, 7295540), (62, 6589520), (70, 5836432), (80, 5106878), (82, 4982320), (98, 4168880), (112, 3647770), (124, 3294760), (140, 2918216), (155, 2635808), (160, 2553439), (164, 2491160), (196, 2084440), (205, 1992928), (217, 1882720), (224, 1823885), (245, 1667552), (248, 1647380), (280, 1459108), (287, 1423520), (310, 1317904), (328, 1245580), (392, 1042220), (410, 996464), (434, 941360), (490, 833776), (496, 823690), (560, 729554), (574, 711760), (620, 658952), (656, 622790), (784, 521110), (820, 498232), (868, 470680), (980, 416888), (992, 411845), (1085, 376544), (1120, 364777), (1148, 355880), (1240, 329476), (1271, 321440), (1312, 311395), (1435, 284704), (1519, 268960), (1568, 260555), (1640, 249116), (1681, 243040), (1736, 235340), (1960, 208444), (2009, 203360), (2170, 188272), (2296, 177940), (2480, 164738), (2542, 160720), (2870, 142352), (3038, 134480), (3280, 124558), (3362, 121520), (3472, 117670), (3920, 104222), (4018, 101680), (4340, 94136), (4592, 88970), (4960, 82369), (5084, 80360), (5740, 71176), (6076, 67240), (6355, 64288), (6560, 62279), (6724, 60760), (6944, 58835), (7595, 53792), (7840, 52111), (8036, 50840), (8405, 48608), (8680, 47068), (8897, 45920), (9184, 44485), (10045, 40672), (10168, 40180), (11480, 35588), (11767, 34720), (12152, 33620), (12710, 32144), (13448, 30380), (15190, 26896), (16072, 25420), (16810, 24304), (17360, 23534), (17794, 22960), (20090, 20336)]