20887650

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:393

約数の個数: 144

約数和(自身を含む): 67704000

約数和(自身を除く): 46816350

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 25, 30, 35, 38, 42, 45, 50, 57, 63, 70, 75, 90, 95, 105, 114, 126, 133, 150, 171, 175, 190, 210, 225, 266, 285, 315, 342, 349, 350, 399, 450, 475, 525, 570, 630, 665, 698, 798, 855, 950, 1047, 1050, 1197, 1330, 1425, 1575, 1710, 1745, 1995, 2094, 2394, 2443, 2850, 3141, 3150, 3325, 3490, 3990, 4275, 4886, 5235, 5985, 6282, 6631, 6650, 7329, 8550, 8725, 9975, 10470, 11970, 12215, 13262, 14658, 15705, 17450, 19893, 19950, 21987, 24430, 26175, 29925, 31410, 33155, 36645, 39786, 43974, 46417, 52350, 59679, 59850, 61075, 66310, 73290, 78525, 92834, 99465, 109935, 119358, 122150, 139251, 157050, 165775, 183225, 198930, 219870, 232085, 278502, 298395, 331550, 366450, 417753, 464170, 497325, 549675, 596790, 696255, 835506, 994650, 1099350, 1160425, 1392510, 1491975, 2088765, 2320850, 2983950, 3481275, 4177530, 6962550, 10443825, 20887650]

約数ペア:

[(1, 20887650), (2, 10443825), (3, 6962550), (5, 4177530), (6, 3481275), (7, 2983950), (9, 2320850), (10, 2088765), (14, 1491975), (15, 1392510), (18, 1160425), (19, 1099350), (21, 994650), (25, 835506), (30, 696255), (35, 596790), (38, 549675), (42, 497325), (45, 464170), (50, 417753), (57, 366450), (63, 331550), (70, 298395), (75, 278502), (90, 232085), (95, 219870), (105, 198930), (114, 183225), (126, 165775), (133, 157050), (150, 139251), (171, 122150), (175, 119358), (190, 109935), (210, 99465), (225, 92834), (266, 78525), (285, 73290), (315, 66310), (342, 61075), (349, 59850), (350, 59679), (399, 52350), (450, 46417), (475, 43974), (525, 39786), (570, 36645), (630, 33155), (665, 31410), (698, 29925), (798, 26175), (855, 24430), (950, 21987), (1047, 19950), (1050, 19893), (1197, 17450), (1330, 15705), (1425, 14658), (1575, 13262), (1710, 12215), (1745, 11970), (1995, 10470), (2094, 9975), (2394, 8725), (2443, 8550), (2850, 7329), (3141, 6650), (3150, 6631), (3325, 6282), (3490, 5985), (3990, 5235), (4275, 4886)]