256250960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:589

約数の個数: 160

約数和(自身を含む): 728524800

約数和(自身を除く): 472273840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 31, 35, 40, 56, 58, 62, 70, 80, 112, 116, 124, 140, 145, 155, 203, 217, 232, 248, 280, 290, 310, 406, 434, 464, 496, 509, 560, 580, 620, 812, 868, 899, 1015, 1018, 1085, 1160, 1240, 1624, 1736, 1798, 2030, 2036, 2170, 2320, 2480, 2545, 3248, 3472, 3563, 3596, 4060, 4072, 4340, 4495, 5090, 6293, 7126, 7192, 8120, 8144, 8680, 8990, 10180, 12586, 14252, 14384, 14761, 15779, 16240, 17360, 17815, 17980, 20360, 25172, 28504, 29522, 31465, 31558, 35630, 35960, 40720, 50344, 57008, 59044, 62930, 63116, 71260, 71920, 73805, 78895, 100688, 103327, 110453, 118088, 125860, 126232, 142520, 147610, 157790, 206654, 220906, 236176, 251720, 252464, 285040, 295220, 315580, 413308, 441812, 457591, 503440, 516635, 552265, 590440, 631160, 826616, 883624, 915182, 1033270, 1104530, 1180880, 1262320, 1653232, 1767248, 1830364, 2066540, 2209060, 2287955, 3203137, 3660728, 4133080, 4418120, 4575910, 6406274, 7321456, 8266160, 8836240, 9151820, 12812548, 16015685, 18303640, 25625096, 32031370, 36607280, 51250192, 64062740, 128125480, 256250960]

約数ペア:

[(1, 256250960), (2, 128125480), (4, 64062740), (5, 51250192), (7, 36607280), (8, 32031370), (10, 25625096), (14, 18303640), (16, 16015685), (20, 12812548), (28, 9151820), (29, 8836240), (31, 8266160), (35, 7321456), (40, 6406274), (56, 4575910), (58, 4418120), (62, 4133080), (70, 3660728), (80, 3203137), (112, 2287955), (116, 2209060), (124, 2066540), (140, 1830364), (145, 1767248), (155, 1653232), (203, 1262320), (217, 1180880), (232, 1104530), (248, 1033270), (280, 915182), (290, 883624), (310, 826616), (406, 631160), (434, 590440), (464, 552265), (496, 516635), (509, 503440), (560, 457591), (580, 441812), (620, 413308), (812, 315580), (868, 295220), (899, 285040), (1015, 252464), (1018, 251720), (1085, 236176), (1160, 220906), (1240, 206654), (1624, 157790), (1736, 147610), (1798, 142520), (2030, 126232), (2036, 125860), (2170, 118088), (2320, 110453), (2480, 103327), (2545, 100688), (3248, 78895), (3472, 73805), (3563, 71920), (3596, 71260), (4060, 63116), (4072, 62930), (4340, 59044), (4495, 57008), (5090, 50344), (6293, 40720), (7126, 35960), (7192, 35630), (8120, 31558), (8144, 31465), (8680, 29522), (8990, 28504), (10180, 25172), (12586, 20360), (14252, 17980), (14384, 17815), (14761, 17360), (15779, 16240)]