1904220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:235

約数の個数: 72

約数和(自身を含む): 5896800

約数和(自身を除く): 3992580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 149, 180, 213, 284, 298, 355, 426, 447, 596, 639, 710, 745, 852, 894, 1065, 1278, 1341, 1420, 1490, 1788, 2130, 2235, 2556, 2682, 2980, 3195, 4260, 4470, 5364, 6390, 6705, 8940, 10579, 12780, 13410, 21158, 26820, 31737, 42316, 52895, 63474, 95211, 105790, 126948, 158685, 190422, 211580, 317370, 380844, 476055, 634740, 952110, 1904220]

約数ペア:

[(1, 1904220), (2, 952110), (3, 634740), (4, 476055), (5, 380844), (6, 317370), (9, 211580), (10, 190422), (12, 158685), (15, 126948), (18, 105790), (20, 95211), (30, 63474), (36, 52895), (45, 42316), (60, 31737), (71, 26820), (90, 21158), (142, 13410), (149, 12780), (180, 10579), (213, 8940), (284, 6705), (298, 6390), (355, 5364), (426, 4470), (447, 4260), (596, 3195), (639, 2980), (710, 2682), (745, 2556), (852, 2235), (894, 2130), (1065, 1788), (1278, 1490), (1341, 1420)]