20018063324

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{179}}^2\times {\mathrm{421}}^1$

素因数の和:843

約数の個数: 72

約数和(自身を含む): 41118120288

約数和(自身を除く): 21100056964

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 179, 212, 358, 371, 421, 716, 742, 842, 1253, 1484, 1684, 2506, 2947, 5012, 5894, 9487, 11788, 18974, 22313, 32041, 37948, 44626, 64082, 66409, 75359, 89252, 128164, 132818, 150718, 156191, 224287, 265636, 301436, 312382, 448574, 527513, 624764, 897148, 1055026, 1698173, 2110052, 3396346, 3994027, 6792692, 7988054, 11887211, 13489261, 15976108, 23774422, 26978522, 27958189, 47548844, 53957044, 55916378, 94424827, 111832756, 188849654, 377699308, 714930833, 1429861666, 2859723332, 5004515831, 10009031662, 20018063324]

約数ペア:

[(1, 20018063324), (2, 10009031662), (4, 5004515831), (7, 2859723332), (14, 1429861666), (28, 714930833), (53, 377699308), (106, 188849654), (179, 111832756), (212, 94424827), (358, 55916378), (371, 53957044), (421, 47548844), (716, 27958189), (742, 26978522), (842, 23774422), (1253, 15976108), (1484, 13489261), (1684, 11887211), (2506, 7988054), (2947, 6792692), (5012, 3994027), (5894, 3396346), (9487, 2110052), (11788, 1698173), (18974, 1055026), (22313, 897148), (32041, 624764), (37948, 527513), (44626, 448574), (64082, 312382), (66409, 301436), (75359, 265636), (89252, 224287), (128164, 156191), (132818, 150718)]