20731230

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:115

約数の個数: 144

約数和(自身を含む): 61663680

約数和(自身を除く): 40932450

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 29, 30, 39, 45, 47, 58, 65, 78, 87, 90, 94, 117, 130, 141, 145, 169, 174, 195, 234, 235, 261, 282, 290, 338, 377, 390, 423, 435, 470, 507, 522, 585, 611, 705, 754, 845, 846, 870, 1014, 1131, 1170, 1222, 1305, 1363, 1410, 1521, 1690, 1833, 1885, 2115, 2262, 2535, 2610, 2726, 3042, 3055, 3393, 3666, 3770, 4089, 4230, 4901, 5070, 5499, 5655, 6110, 6786, 6815, 7605, 7943, 8178, 9165, 9802, 10998, 11310, 12267, 13630, 14703, 15210, 15886, 16965, 17719, 18330, 20445, 23829, 24505, 24534, 27495, 29406, 33930, 35438, 39715, 40890, 44109, 47658, 49010, 53157, 54990, 61335, 71487, 73515, 79430, 88218, 88595, 106314, 119145, 122670, 142974, 147030, 159471, 177190, 220545, 230347, 238290, 265785, 318942, 357435, 441090, 460694, 531570, 691041, 714870, 797355, 1151735, 1382082, 1594710, 2073123, 2303470, 3455205, 4146246, 6910410, 10365615, 20731230]

約数ペア:

[(1, 20731230), (2, 10365615), (3, 6910410), (5, 4146246), (6, 3455205), (9, 2303470), (10, 2073123), (13, 1594710), (15, 1382082), (18, 1151735), (26, 797355), (29, 714870), (30, 691041), (39, 531570), (45, 460694), (47, 441090), (58, 357435), (65, 318942), (78, 265785), (87, 238290), (90, 230347), (94, 220545), (117, 177190), (130, 159471), (141, 147030), (145, 142974), (169, 122670), (174, 119145), (195, 106314), (234, 88595), (235, 88218), (261, 79430), (282, 73515), (290, 71487), (338, 61335), (377, 54990), (390, 53157), (423, 49010), (435, 47658), (470, 44109), (507, 40890), (522, 39715), (585, 35438), (611, 33930), (705, 29406), (754, 27495), (845, 24534), (846, 24505), (870, 23829), (1014, 20445), (1131, 18330), (1170, 17719), (1222, 16965), (1305, 15886), (1363, 15210), (1410, 14703), (1521, 13630), (1690, 12267), (1833, 11310), (1885, 10998), (2115, 9802), (2262, 9165), (2535, 8178), (2610, 7943), (2726, 7605), (3042, 6815), (3055, 6786), (3393, 6110), (3666, 5655), (3770, 5499), (4089, 5070), (4230, 4901)]