389462920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4079}}^1$

素因数の和:4139

約数の個数: 128

約数和(自身を含む): 1128038400

約数和(自身を除く): 738575480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 88, 110, 124, 140, 154, 155, 217, 220, 248, 280, 308, 310, 341, 385, 434, 440, 616, 620, 682, 770, 868, 1085, 1240, 1364, 1540, 1705, 1736, 2170, 2387, 2728, 3080, 3410, 4079, 4340, 4774, 6820, 8158, 8680, 9548, 11935, 13640, 16316, 19096, 20395, 23870, 28553, 32632, 40790, 44869, 47740, 57106, 81580, 89738, 95480, 114212, 126449, 142765, 163160, 179476, 224345, 228424, 252898, 285530, 314083, 358952, 448690, 505796, 571060, 628166, 632245, 885143, 897380, 1011592, 1142120, 1256332, 1264490, 1390939, 1570415, 1770286, 1794760, 2512664, 2528980, 2781878, 3140830, 3540572, 4425715, 5057960, 5563756, 6281660, 6954695, 7081144, 8851430, 9736573, 11127512, 12563320, 13909390, 17702860, 19473146, 27818780, 35405720, 38946292, 48682865, 55637560, 77892584, 97365730, 194731460, 389462920]

約数ペア:

[(1, 389462920), (2, 194731460), (4, 97365730), (5, 77892584), (7, 55637560), (8, 48682865), (10, 38946292), (11, 35405720), (14, 27818780), (20, 19473146), (22, 17702860), (28, 13909390), (31, 12563320), (35, 11127512), (40, 9736573), (44, 8851430), (55, 7081144), (56, 6954695), (62, 6281660), (70, 5563756), (77, 5057960), (88, 4425715), (110, 3540572), (124, 3140830), (140, 2781878), (154, 2528980), (155, 2512664), (217, 1794760), (220, 1770286), (248, 1570415), (280, 1390939), (308, 1264490), (310, 1256332), (341, 1142120), (385, 1011592), (434, 897380), (440, 885143), (616, 632245), (620, 628166), (682, 571060), (770, 505796), (868, 448690), (1085, 358952), (1240, 314083), (1364, 285530), (1540, 252898), (1705, 228424), (1736, 224345), (2170, 179476), (2387, 163160), (2728, 142765), (3080, 126449), (3410, 114212), (4079, 95480), (4340, 89738), (4774, 81580), (6820, 57106), (8158, 47740), (8680, 44869), (9548, 40790), (11935, 32632), (13640, 28553), (16316, 23870), (19096, 20395)]