28274220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:352

約数の個数: 144

約数和(自身を含む): 94846752

約数和(自身を除く): 66572532

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, 281, 387, 390, 430, 468, 516, 559, 562, 585, 645, 774, 780, 843, 860, 1118, 1124, 1170, 1290, 1405, 1548, 1677, 1686, 1935, 2236, 2340, 2529, 2580, 2795, 2810, 3354, 3372, 3653, 3870, 4215, 5031, 5058, 5590, 5620, 6708, 7306, 7740, 8385, 8430, 10062, 10116, 10959, 11180, 12083, 12645, 14612, 16770, 16860, 18265, 20124, 21918, 24166, 25155, 25290, 32877, 33540, 36249, 36530, 43836, 48332, 50310, 50580, 54795, 60415, 65754, 72498, 73060, 100620, 108747, 109590, 120830, 131508, 144996, 157079, 164385, 181245, 217494, 219180, 241660, 314158, 328770, 362490, 434988, 471237, 543735, 628316, 657540, 724980, 785395, 942474, 1087470, 1413711, 1570790, 1884948, 2174940, 2356185, 2827422, 3141580, 4712370, 5654844, 7068555, 9424740, 14137110, 28274220]

約数ペア:

[(1, 28274220), (2, 14137110), (3, 9424740), (4, 7068555), (5, 5654844), (6, 4712370), (9, 3141580), (10, 2827422), (12, 2356185), (13, 2174940), (15, 1884948), (18, 1570790), (20, 1413711), (26, 1087470), (30, 942474), (36, 785395), (39, 724980), (43, 657540), (45, 628316), (52, 543735), (60, 471237), (65, 434988), (78, 362490), (86, 328770), (90, 314158), (117, 241660), (129, 219180), (130, 217494), (156, 181245), (172, 164385), (180, 157079), (195, 144996), (215, 131508), (234, 120830), (258, 109590), (260, 108747), (281, 100620), (387, 73060), (390, 72498), (430, 65754), (468, 60415), (516, 54795), (559, 50580), (562, 50310), (585, 48332), (645, 43836), (774, 36530), (780, 36249), (843, 33540), (860, 32877), (1118, 25290), (1124, 25155), (1170, 24166), (1290, 21918), (1405, 20124), (1548, 18265), (1677, 16860), (1686, 16770), (1935, 14612), (2236, 12645), (2340, 12083), (2529, 11180), (2580, 10959), (2795, 10116), (2810, 10062), (3354, 8430), (3372, 8385), (3653, 7740), (3870, 7306), (4215, 6708), (5031, 5620), (5058, 5590)]