19676940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:263

約数の個数: 96

約数和(自身を含む): 58060800

約数和(自身を除く): 38383860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 71, 93, 124, 142, 149, 155, 186, 213, 284, 298, 310, 355, 372, 426, 447, 465, 596, 620, 710, 745, 852, 894, 930, 1065, 1420, 1490, 1788, 1860, 2130, 2201, 2235, 2980, 4260, 4402, 4470, 4619, 6603, 8804, 8940, 9238, 10579, 11005, 13206, 13857, 18476, 21158, 22010, 23095, 26412, 27714, 31737, 33015, 42316, 44020, 46190, 52895, 55428, 63474, 66030, 69285, 92380, 105790, 126948, 132060, 138570, 158685, 211580, 277140, 317370, 327949, 634740, 655898, 983847, 1311796, 1639745, 1967694, 3279490, 3935388, 4919235, 6558980, 9838470, 19676940]

約数ペア:

[(1, 19676940), (2, 9838470), (3, 6558980), (4, 4919235), (5, 3935388), (6, 3279490), (10, 1967694), (12, 1639745), (15, 1311796), (20, 983847), (30, 655898), (31, 634740), (60, 327949), (62, 317370), (71, 277140), (93, 211580), (124, 158685), (142, 138570), (149, 132060), (155, 126948), (186, 105790), (213, 92380), (284, 69285), (298, 66030), (310, 63474), (355, 55428), (372, 52895), (426, 46190), (447, 44020), (465, 42316), (596, 33015), (620, 31737), (710, 27714), (745, 26412), (852, 23095), (894, 22010), (930, 21158), (1065, 18476), (1420, 13857), (1490, 13206), (1788, 11005), (1860, 10579), (2130, 9238), (2201, 8940), (2235, 8804), (2980, 6603), (4260, 4619), (4402, 4470)]