19663440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{81931}}^1$

素因数の和:81947

約数の個数: 40

約数和(自身を含む): 60957408

約数和(自身を除く): 41293968

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 81931, 163862, 245793, 327724, 409655, 491586, 655448, 819310, 983172, 1228965, 1310896, 1638620, 1966344, 2457930, 3277240, 3932688, 4915860, 6554480, 9831720, 19663440]

約数ペア:

[(1, 19663440), (2, 9831720), (3, 6554480), (4, 4915860), (5, 3932688), (6, 3277240), (8, 2457930), (10, 1966344), (12, 1638620), (15, 1310896), (16, 1228965), (20, 983172), (24, 819310), (30, 655448), (40, 491586), (48, 409655), (60, 327724), (80, 245793), (120, 163862), (240, 81931)]