2981537720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1621}}^1\times {\mathrm{6569}}^1$

素因数の和:8208

約数の個数: 64

約数和(自身を含む): 7672708800

約数和(自身を除く): 4691171080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1621, 3242, 6484, 6569, 8105, 11347, 12968, 13138, 16210, 22694, 26276, 32420, 32845, 45388, 45983, 52552, 56735, 64840, 65690, 90776, 91966, 113470, 131380, 183932, 226940, 229915, 262760, 367864, 453880, 459830, 919660, 1839320, 10648349, 21296698, 42593396, 53241745, 74538443, 85186792, 106483490, 149076886, 212966980, 298153772, 372692215, 425933960, 596307544, 745384430, 1490768860, 2981537720]

約数ペア:

[(1, 2981537720), (2, 1490768860), (4, 745384430), (5, 596307544), (7, 425933960), (8, 372692215), (10, 298153772), (14, 212966980), (20, 149076886), (28, 106483490), (35, 85186792), (40, 74538443), (56, 53241745), (70, 42593396), (140, 21296698), (280, 10648349), (1621, 1839320), (3242, 919660), (6484, 459830), (6569, 453880), (8105, 367864), (11347, 262760), (12968, 229915), (13138, 226940), (16210, 183932), (22694, 131380), (26276, 113470), (32420, 91966), (32845, 90776), (45388, 65690), (45983, 64840), (52552, 56735)]