19788210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1301}}^1$

素因数の和:1340

約数の個数: 72

約数和(自身を含む): 55754244

約数和(自身を除く): 35966034

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 169, 195, 234, 338, 390, 507, 585, 845, 1014, 1170, 1301, 1521, 1690, 2535, 2602, 3042, 3903, 5070, 6505, 7605, 7806, 11709, 13010, 15210, 16913, 19515, 23418, 33826, 39030, 50739, 58545, 84565, 101478, 117090, 152217, 169130, 219869, 253695, 304434, 439738, 507390, 659607, 761085, 1099345, 1319214, 1522170, 1978821, 2198690, 3298035, 3957642, 6596070, 9894105, 19788210]

約数ペア:

[(1, 19788210), (2, 9894105), (3, 6596070), (5, 3957642), (6, 3298035), (9, 2198690), (10, 1978821), (13, 1522170), (15, 1319214), (18, 1099345), (26, 761085), (30, 659607), (39, 507390), (45, 439738), (65, 304434), (78, 253695), (90, 219869), (117, 169130), (130, 152217), (169, 117090), (195, 101478), (234, 84565), (338, 58545), (390, 50739), (507, 39030), (585, 33826), (845, 23418), (1014, 19515), (1170, 16913), (1301, 15210), (1521, 13010), (1690, 11709), (2535, 7806), (2602, 7605), (3042, 6505), (3903, 5070)]