19664550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:598

約数の個数: 72

約数和(自身を含む): 53534520

約数和(自身を除く): 33869970

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 89, 90, 150, 178, 225, 267, 445, 450, 491, 534, 801, 890, 982, 1335, 1473, 1602, 2225, 2455, 2670, 2946, 4005, 4419, 4450, 4910, 6675, 7365, 8010, 8838, 12275, 13350, 14730, 20025, 22095, 24550, 36825, 40050, 43699, 44190, 73650, 87398, 110475, 131097, 218495, 220950, 262194, 393291, 436990, 655485, 786582, 1092475, 1310970, 1966455, 2184950, 3277425, 3932910, 6554850, 9832275, 19664550]

約数ペア:

[(1, 19664550), (2, 9832275), (3, 6554850), (5, 3932910), (6, 3277425), (9, 2184950), (10, 1966455), (15, 1310970), (18, 1092475), (25, 786582), (30, 655485), (45, 436990), (50, 393291), (75, 262194), (89, 220950), (90, 218495), (150, 131097), (178, 110475), (225, 87398), (267, 73650), (445, 44190), (450, 43699), (491, 40050), (534, 36825), (801, 24550), (890, 22095), (982, 20025), (1335, 14730), (1473, 13350), (1602, 12275), (2225, 8838), (2455, 8010), (2670, 7365), (2946, 6675), (4005, 4910), (4419, 4450)]