649331340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{220861}}^1$

素因数の和:220887

約数の個数: 72

約数和(自身を含む): 2114974512

約数和(自身を除く): 1465643172

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 220861, 441722, 662583, 883444, 1104305, 1325166, 1546027, 2208610, 2650332, 3092054, 3312915, 4417220, 4638081, 6184108, 6625830, 7730135, 9276162, 10822189, 13251660, 15460270, 18552324, 21644378, 23190405, 30920540, 32466567, 43288756, 46380810, 54110945, 64933134, 92761620, 108221890, 129866268, 162332835, 216443780, 324665670, 649331340]

約数ペア:

[(1, 649331340), (2, 324665670), (3, 216443780), (4, 162332835), (5, 129866268), (6, 108221890), (7, 92761620), (10, 64933134), (12, 54110945), (14, 46380810), (15, 43288756), (20, 32466567), (21, 30920540), (28, 23190405), (30, 21644378), (35, 18552324), (42, 15460270), (49, 13251660), (60, 10822189), (70, 9276162), (84, 7730135), (98, 6625830), (105, 6184108), (140, 4638081), (147, 4417220), (196, 3312915), (210, 3092054), (245, 2650332), (294, 2208610), (420, 1546027), (490, 1325166), (588, 1104305), (735, 883444), (980, 662583), (1470, 441722), (2940, 220861)]