198618490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:439

約数の個数: 64

約数和(自身を含む): 417312000

約数和(自身を除く): 218693510

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 137, 139, 149, 274, 278, 298, 685, 695, 745, 959, 973, 1043, 1370, 1390, 1490, 1918, 1946, 2086, 4795, 4865, 5215, 9590, 9730, 10430, 19043, 20413, 20711, 38086, 40826, 41422, 95215, 102065, 103555, 133301, 142891, 144977, 190430, 204130, 207110, 266602, 285782, 289954, 666505, 714455, 724885, 1333010, 1428910, 1449770, 2837407, 5674814, 14187035, 19861849, 28374070, 39723698, 99309245, 198618490]

約数ペア:

[(1, 198618490), (2, 99309245), (5, 39723698), (7, 28374070), (10, 19861849), (14, 14187035), (35, 5674814), (70, 2837407), (137, 1449770), (139, 1428910), (149, 1333010), (274, 724885), (278, 714455), (298, 666505), (685, 289954), (695, 285782), (745, 266602), (959, 207110), (973, 204130), (1043, 190430), (1370, 144977), (1390, 142891), (1490, 133301), (1918, 103555), (1946, 102065), (2086, 95215), (4795, 41422), (4865, 40826), (5215, 38086), (9590, 20711), (9730, 20413), (10430, 19043)]