20213700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:174

約数の個数: 144

約数和(自身を含む): 64745856

約数和(自身を除く): 44532156

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 71, 73, 75, 78, 100, 130, 142, 146, 150, 156, 195, 213, 219, 260, 284, 292, 300, 325, 355, 365, 390, 426, 438, 650, 710, 730, 780, 852, 876, 923, 949, 975, 1065, 1095, 1300, 1420, 1460, 1775, 1825, 1846, 1898, 1950, 2130, 2190, 2769, 2847, 3550, 3650, 3692, 3796, 3900, 4260, 4380, 4615, 4745, 5183, 5325, 5475, 5538, 5694, 7100, 7300, 9230, 9490, 10366, 10650, 10950, 11076, 11388, 13845, 14235, 15549, 18460, 18980, 20732, 21300, 21900, 23075, 23725, 25915, 27690, 28470, 31098, 46150, 47450, 51830, 55380, 56940, 62196, 67379, 69225, 71175, 77745, 92300, 94900, 103660, 129575, 134758, 138450, 142350, 155490, 202137, 259150, 269516, 276900, 284700, 310980, 336895, 388725, 404274, 518300, 673790, 777450, 808548, 1010685, 1347580, 1554900, 1684475, 2021370, 3368950, 4042740, 5053425, 6737900, 10106850, 20213700]

約数ペア:

[(1, 20213700), (2, 10106850), (3, 6737900), (4, 5053425), (5, 4042740), (6, 3368950), (10, 2021370), (12, 1684475), (13, 1554900), (15, 1347580), (20, 1010685), (25, 808548), (26, 777450), (30, 673790), (39, 518300), (50, 404274), (52, 388725), (60, 336895), (65, 310980), (71, 284700), (73, 276900), (75, 269516), (78, 259150), (100, 202137), (130, 155490), (142, 142350), (146, 138450), (150, 134758), (156, 129575), (195, 103660), (213, 94900), (219, 92300), (260, 77745), (284, 71175), (292, 69225), (300, 67379), (325, 62196), (355, 56940), (365, 55380), (390, 51830), (426, 47450), (438, 46150), (650, 31098), (710, 28470), (730, 27690), (780, 25915), (852, 23725), (876, 23075), (923, 21900), (949, 21300), (975, 20732), (1065, 18980), (1095, 18460), (1300, 15549), (1420, 14235), (1460, 13845), (1775, 11388), (1825, 11076), (1846, 10950), (1898, 10650), (1950, 10366), (2130, 9490), (2190, 9230), (2769, 7300), (2847, 7100), (3550, 5694), (3650, 5538), (3692, 5475), (3796, 5325), (3900, 5183), (4260, 4745), (4380, 4615)]