305781520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1019}}^1$

素因数の和:1085

約数の個数: 120

約数和(自身を含む): 807448320

約数和(自身を除く): 501666800

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 121, 124, 155, 176, 220, 242, 248, 310, 341, 440, 484, 496, 605, 620, 682, 880, 968, 1019, 1210, 1240, 1364, 1705, 1936, 2038, 2420, 2480, 2728, 3410, 3751, 4076, 4840, 5095, 5456, 6820, 7502, 8152, 9680, 10190, 11209, 13640, 15004, 16304, 18755, 20380, 22418, 27280, 30008, 31589, 37510, 40760, 44836, 56045, 60016, 63178, 75020, 81520, 89672, 112090, 123299, 126356, 150040, 157945, 179344, 224180, 246598, 252712, 300080, 315890, 347479, 448360, 493196, 505424, 616495, 631780, 694958, 896720, 986392, 1232990, 1263560, 1389916, 1737395, 1972784, 2465980, 2527120, 2779832, 3474790, 3822269, 4931960, 5559664, 6949580, 7644538, 9863920, 13899160, 15289076, 19111345, 27798320, 30578152, 38222690, 61156304, 76445380, 152890760, 305781520]

約数ペア:

[(1, 305781520), (2, 152890760), (4, 76445380), (5, 61156304), (8, 38222690), (10, 30578152), (11, 27798320), (16, 19111345), (20, 15289076), (22, 13899160), (31, 9863920), (40, 7644538), (44, 6949580), (55, 5559664), (62, 4931960), (80, 3822269), (88, 3474790), (110, 2779832), (121, 2527120), (124, 2465980), (155, 1972784), (176, 1737395), (220, 1389916), (242, 1263560), (248, 1232990), (310, 986392), (341, 896720), (440, 694958), (484, 631780), (496, 616495), (605, 505424), (620, 493196), (682, 448360), (880, 347479), (968, 315890), (1019, 300080), (1210, 252712), (1240, 246598), (1364, 224180), (1705, 179344), (1936, 157945), (2038, 150040), (2420, 126356), (2480, 123299), (2728, 112090), (3410, 89672), (3751, 81520), (4076, 75020), (4840, 63178), (5095, 60016), (5456, 56045), (6820, 44836), (7502, 40760), (8152, 37510), (9680, 31589), (10190, 30008), (11209, 27280), (13640, 22418), (15004, 20380), (16304, 18755)]