31292820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:382

約数の個数: 144

約数和(自身を含む): 104936832

約数和(自身を除く): 73644012

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 43, 45, 52, 60, 65, 78, 86, 90, 117, 129, 130, 156, 172, 180, 195, 215, 234, 258, 260, 311, 387, 390, 430, 468, 516, 559, 585, 622, 645, 774, 780, 860, 933, 1118, 1170, 1244, 1290, 1548, 1555, 1677, 1866, 1935, 2236, 2340, 2580, 2795, 2799, 3110, 3354, 3732, 3870, 4043, 4665, 5031, 5590, 5598, 6220, 6708, 7740, 8086, 8385, 9330, 10062, 11180, 11196, 12129, 13373, 13995, 16172, 16770, 18660, 20124, 20215, 24258, 25155, 26746, 27990, 33540, 36387, 40119, 40430, 48516, 50310, 53492, 55980, 60645, 66865, 72774, 80238, 80860, 100620, 120357, 121290, 133730, 145548, 160476, 173849, 181935, 200595, 240714, 242580, 267460, 347698, 363870, 401190, 481428, 521547, 601785, 695396, 727740, 802380, 869245, 1043094, 1203570, 1564641, 1738490, 2086188, 2407140, 2607735, 3129282, 3476980, 5215470, 6258564, 7823205, 10430940, 15646410, 31292820]

約数ペア:

[(1, 31292820), (2, 15646410), (3, 10430940), (4, 7823205), (5, 6258564), (6, 5215470), (9, 3476980), (10, 3129282), (12, 2607735), (13, 2407140), (15, 2086188), (18, 1738490), (20, 1564641), (26, 1203570), (30, 1043094), (36, 869245), (39, 802380), (43, 727740), (45, 695396), (52, 601785), (60, 521547), (65, 481428), (78, 401190), (86, 363870), (90, 347698), (117, 267460), (129, 242580), (130, 240714), (156, 200595), (172, 181935), (180, 173849), (195, 160476), (215, 145548), (234, 133730), (258, 121290), (260, 120357), (311, 100620), (387, 80860), (390, 80238), (430, 72774), (468, 66865), (516, 60645), (559, 55980), (585, 53492), (622, 50310), (645, 48516), (774, 40430), (780, 40119), (860, 36387), (933, 33540), (1118, 27990), (1170, 26746), (1244, 25155), (1290, 24258), (1548, 20215), (1555, 20124), (1677, 18660), (1866, 16770), (1935, 16172), (2236, 13995), (2340, 13373), (2580, 12129), (2795, 11196), (2799, 11180), (3110, 10062), (3354, 9330), (3732, 8385), (3870, 8086), (4043, 7740), (4665, 6708), (5031, 6220), (5590, 5598)]