311914960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1$

素因数の和:501

約数の個数: 160

約数和(自身を含む): 881229312

約数和(自身を除く): 569314352

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 61, 70, 80, 92, 112, 115, 122, 140, 161, 184, 230, 244, 280, 305, 322, 368, 397, 427, 460, 488, 560, 610, 644, 794, 805, 854, 920, 976, 1220, 1288, 1403, 1588, 1610, 1708, 1840, 1985, 2135, 2440, 2576, 2779, 2806, 3176, 3220, 3416, 3970, 4270, 4880, 5558, 5612, 6352, 6440, 6832, 7015, 7940, 8540, 9131, 9821, 11116, 11224, 12880, 13895, 14030, 15880, 17080, 18262, 19642, 22232, 22448, 24217, 27790, 28060, 31760, 34160, 36524, 39284, 44464, 45655, 48434, 49105, 55580, 56120, 63917, 73048, 78568, 91310, 96868, 98210, 111160, 112240, 121085, 127834, 146096, 157136, 169519, 182620, 193736, 196420, 222320, 242170, 255668, 319585, 339038, 365240, 387472, 392840, 484340, 511336, 556991, 639170, 678076, 730480, 785680, 847595, 968680, 1022672, 1113982, 1278340, 1356152, 1695190, 1937360, 2227964, 2556680, 2712304, 2784955, 3390380, 3898937, 4455928, 5113360, 5569910, 6780760, 7797874, 8911856, 11139820, 13561520, 15595748, 19494685, 22279640, 31191496, 38989370, 44559280, 62382992, 77978740, 155957480, 311914960]

約数ペア:

[(1, 311914960), (2, 155957480), (4, 77978740), (5, 62382992), (7, 44559280), (8, 38989370), (10, 31191496), (14, 22279640), (16, 19494685), (20, 15595748), (23, 13561520), (28, 11139820), (35, 8911856), (40, 7797874), (46, 6780760), (56, 5569910), (61, 5113360), (70, 4455928), (80, 3898937), (92, 3390380), (112, 2784955), (115, 2712304), (122, 2556680), (140, 2227964), (161, 1937360), (184, 1695190), (230, 1356152), (244, 1278340), (280, 1113982), (305, 1022672), (322, 968680), (368, 847595), (397, 785680), (427, 730480), (460, 678076), (488, 639170), (560, 556991), (610, 511336), (644, 484340), (794, 392840), (805, 387472), (854, 365240), (920, 339038), (976, 319585), (1220, 255668), (1288, 242170), (1403, 222320), (1588, 196420), (1610, 193736), (1708, 182620), (1840, 169519), (1985, 157136), (2135, 146096), (2440, 127834), (2576, 121085), (2779, 112240), (2806, 111160), (3176, 98210), (3220, 96868), (3416, 91310), (3970, 78568), (4270, 73048), (4880, 63917), (5558, 56120), (5612, 55580), (6352, 49105), (6440, 48434), (6832, 45655), (7015, 44464), (7940, 39284), (8540, 36524), (9131, 34160), (9821, 31760), (11116, 28060), (11224, 27790), (12880, 24217), (13895, 22448), (14030, 22232), (15880, 19642), (17080, 18262)]