19980821490

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{324733}}^1$

素因数の和:325043

約数の個数: 64

約数和(自身を含む): 54991754496

約数和(自身を除く): 35010933006

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 293, 586, 879, 1465, 1758, 2051, 2930, 4102, 4395, 6153, 8790, 10255, 12306, 20510, 30765, 61530, 324733, 649466, 974199, 1623665, 1948398, 2273131, 3247330, 4546262, 4870995, 6819393, 9741990, 11365655, 13638786, 22731310, 34096965, 68193930, 95146769, 190293538, 285440307, 475733845, 570880614, 666027383, 951467690, 1332054766, 1427201535, 1998082149, 2854403070, 3330136915, 3996164298, 6660273830, 9990410745, 19980821490]

約数ペア:

[(1, 19980821490), (2, 9990410745), (3, 6660273830), (5, 3996164298), (6, 3330136915), (7, 2854403070), (10, 1998082149), (14, 1427201535), (15, 1332054766), (21, 951467690), (30, 666027383), (35, 570880614), (42, 475733845), (70, 285440307), (105, 190293538), (210, 95146769), (293, 68193930), (586, 34096965), (879, 22731310), (1465, 13638786), (1758, 11365655), (2051, 9741990), (2930, 6819393), (4102, 4870995), (4395, 4546262), (6153, 3247330), (8790, 2273131), (10255, 1948398), (12306, 1623665), (20510, 974199), (30765, 649466), (61530, 324733)]