81234690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2689}}^1$

素因数の和:2771

約数の個数: 64

約数和(自身を含む): 209174400

約数和(自身を除く): 127939710

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 53, 57, 95, 106, 114, 159, 190, 265, 285, 318, 530, 570, 795, 1007, 1590, 2014, 2689, 3021, 5035, 5378, 6042, 8067, 10070, 13445, 15105, 16134, 26890, 30210, 40335, 51091, 80670, 102182, 142517, 153273, 255455, 285034, 306546, 427551, 510910, 712585, 766365, 855102, 1425170, 1532730, 2137755, 2707823, 4275510, 5415646, 8123469, 13539115, 16246938, 27078230, 40617345, 81234690]

約数ペア:

[(1, 81234690), (2, 40617345), (3, 27078230), (5, 16246938), (6, 13539115), (10, 8123469), (15, 5415646), (19, 4275510), (30, 2707823), (38, 2137755), (53, 1532730), (57, 1425170), (95, 855102), (106, 766365), (114, 712585), (159, 510910), (190, 427551), (265, 306546), (285, 285034), (318, 255455), (530, 153273), (570, 142517), (795, 102182), (1007, 80670), (1590, 51091), (2014, 40335), (2689, 30210), (3021, 26890), (5035, 16134), (5378, 15105), (6042, 13445), (8067, 10070)]