77890120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^4\times {\mathrm{19}}^1$

素因数の和:81

約数の個数: 160

約数和(自身を含む): 231912000

約数和(自身を除く): 154021880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 19, 20, 22, 28, 35, 38, 40, 44, 55, 56, 70, 76, 77, 88, 95, 110, 121, 133, 140, 152, 154, 190, 209, 220, 242, 266, 280, 308, 380, 385, 418, 440, 484, 532, 605, 616, 665, 760, 770, 836, 847, 968, 1045, 1064, 1210, 1330, 1331, 1463, 1540, 1672, 1694, 2090, 2299, 2420, 2660, 2662, 2926, 3080, 3388, 4180, 4235, 4598, 4840, 5320, 5324, 5852, 6655, 6776, 7315, 8360, 8470, 9196, 9317, 10648, 11495, 11704, 13310, 14630, 14641, 16093, 16940, 18392, 18634, 22990, 25289, 26620, 29260, 29282, 32186, 33880, 37268, 45980, 46585, 50578, 53240, 58520, 58564, 64372, 73205, 74536, 80465, 91960, 93170, 101156, 102487, 117128, 126445, 128744, 146410, 160930, 177023, 186340, 202312, 204974, 252890, 278179, 292820, 321860, 354046, 372680, 409948, 505780, 512435, 556358, 585640, 643720, 708092, 819896, 885115, 1011560, 1024870, 1112716, 1390895, 1416184, 1770230, 1947253, 2049740, 2225432, 2781790, 3540460, 3894506, 4099480, 5563580, 7080920, 7789012, 9736265, 11127160, 15578024, 19472530, 38945060, 77890120]

約数ペア:

[(1, 77890120), (2, 38945060), (4, 19472530), (5, 15578024), (7, 11127160), (8, 9736265), (10, 7789012), (11, 7080920), (14, 5563580), (19, 4099480), (20, 3894506), (22, 3540460), (28, 2781790), (35, 2225432), (38, 2049740), (40, 1947253), (44, 1770230), (55, 1416184), (56, 1390895), (70, 1112716), (76, 1024870), (77, 1011560), (88, 885115), (95, 819896), (110, 708092), (121, 643720), (133, 585640), (140, 556358), (152, 512435), (154, 505780), (190, 409948), (209, 372680), (220, 354046), (242, 321860), (266, 292820), (280, 278179), (308, 252890), (380, 204974), (385, 202312), (418, 186340), (440, 177023), (484, 160930), (532, 146410), (605, 128744), (616, 126445), (665, 117128), (760, 102487), (770, 101156), (836, 93170), (847, 91960), (968, 80465), (1045, 74536), (1064, 73205), (1210, 64372), (1330, 58564), (1331, 58520), (1463, 53240), (1540, 50578), (1672, 46585), (1694, 45980), (2090, 37268), (2299, 33880), (2420, 32186), (2660, 29282), (2662, 29260), (2926, 26620), (3080, 25289), (3388, 22990), (4180, 18634), (4235, 18392), (4598, 16940), (4840, 16093), (5320, 14641), (5324, 14630), (5852, 13310), (6655, 11704), (6776, 11495), (7315, 10648), (8360, 9317), (8470, 9196)]