391551720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2969}}^1$

素因数の和:3147

約数の個数: 128

約数和(自身を含む): 1351468800

約数和(自身を除く): 959917080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 157, 168, 210, 280, 314, 420, 471, 628, 785, 840, 942, 1099, 1256, 1570, 1884, 2198, 2355, 2969, 3140, 3297, 3768, 4396, 4710, 5495, 5938, 6280, 6594, 8792, 8907, 9420, 10990, 11876, 13188, 14845, 16485, 17814, 18840, 20783, 21980, 23752, 26376, 29690, 32970, 35628, 41566, 43960, 44535, 59380, 62349, 65940, 71256, 83132, 89070, 103915, 118760, 124698, 131880, 166264, 178140, 207830, 249396, 311745, 356280, 415660, 466133, 498792, 623490, 831320, 932266, 1246980, 1398399, 1864532, 2330665, 2493960, 2796798, 3262931, 3729064, 4661330, 5593596, 6525862, 6991995, 9322660, 9788793, 11187192, 13051724, 13983990, 16314655, 18645320, 19577586, 26103448, 27967980, 32629310, 39155172, 48943965, 55935960, 65258620, 78310344, 97887930, 130517240, 195775860, 391551720]

約数ペア:

[(1, 391551720), (2, 195775860), (3, 130517240), (4, 97887930), (5, 78310344), (6, 65258620), (7, 55935960), (8, 48943965), (10, 39155172), (12, 32629310), (14, 27967980), (15, 26103448), (20, 19577586), (21, 18645320), (24, 16314655), (28, 13983990), (30, 13051724), (35, 11187192), (40, 9788793), (42, 9322660), (56, 6991995), (60, 6525862), (70, 5593596), (84, 4661330), (105, 3729064), (120, 3262931), (140, 2796798), (157, 2493960), (168, 2330665), (210, 1864532), (280, 1398399), (314, 1246980), (420, 932266), (471, 831320), (628, 623490), (785, 498792), (840, 466133), (942, 415660), (1099, 356280), (1256, 311745), (1570, 249396), (1884, 207830), (2198, 178140), (2355, 166264), (2969, 131880), (3140, 124698), (3297, 118760), (3768, 103915), (4396, 89070), (4710, 83132), (5495, 71256), (5938, 65940), (6280, 62349), (6594, 59380), (8792, 44535), (8907, 43960), (9420, 41566), (10990, 35628), (11876, 32970), (13188, 29690), (14845, 26376), (16485, 23752), (17814, 21980), (18840, 20783)]