128648340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:286

約数の個数: 144

約数和(自身を含む): 403603200

約数和(自身を除く): 274954860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 83, 90, 109, 158, 166, 180, 218, 237, 249, 316, 327, 332, 395, 415, 436, 474, 498, 545, 654, 711, 747, 790, 830, 948, 981, 996, 1090, 1185, 1245, 1308, 1422, 1494, 1580, 1635, 1660, 1962, 2180, 2370, 2490, 2844, 2988, 3270, 3555, 3735, 3924, 4740, 4905, 4980, 6540, 6557, 7110, 7470, 8611, 9047, 9810, 13114, 14220, 14940, 17222, 18094, 19620, 19671, 25833, 26228, 27141, 32785, 34444, 36188, 39342, 43055, 45235, 51666, 54282, 59013, 65570, 77499, 78684, 81423, 86110, 90470, 98355, 103332, 108564, 118026, 129165, 131140, 135705, 154998, 162846, 172220, 180940, 196710, 236052, 258330, 271410, 295065, 309996, 325692, 387495, 393420, 407115, 516660, 542820, 590130, 714713, 774990, 814230, 1180260, 1429426, 1549980, 1628460, 2144139, 2858852, 3573565, 4288278, 6432417, 7147130, 8576556, 10720695, 12864834, 14294260, 21441390, 25729668, 32162085, 42882780, 64324170, 128648340]

約数ペア:

[(1, 128648340), (2, 64324170), (3, 42882780), (4, 32162085), (5, 25729668), (6, 21441390), (9, 14294260), (10, 12864834), (12, 10720695), (15, 8576556), (18, 7147130), (20, 6432417), (30, 4288278), (36, 3573565), (45, 2858852), (60, 2144139), (79, 1628460), (83, 1549980), (90, 1429426), (109, 1180260), (158, 814230), (166, 774990), (180, 714713), (218, 590130), (237, 542820), (249, 516660), (316, 407115), (327, 393420), (332, 387495), (395, 325692), (415, 309996), (436, 295065), (474, 271410), (498, 258330), (545, 236052), (654, 196710), (711, 180940), (747, 172220), (790, 162846), (830, 154998), (948, 135705), (981, 131140), (996, 129165), (1090, 118026), (1185, 108564), (1245, 103332), (1308, 98355), (1422, 90470), (1494, 86110), (1580, 81423), (1635, 78684), (1660, 77499), (1962, 65570), (2180, 59013), (2370, 54282), (2490, 51666), (2844, 45235), (2988, 43055), (3270, 39342), (3555, 36188), (3735, 34444), (3924, 32785), (4740, 27141), (4905, 26228), (4980, 25833), (6540, 19671), (6557, 19620), (7110, 18094), (7470, 17222), (8611, 14940), (9047, 14220), (9810, 13114)]