638551144

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1$

素因数の和:360

約数の個数: 192

約数和(自身を含む): 1666552320

約数和(自身を除く): 1028001176

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 22, 28, 31, 34, 44, 49, 56, 62, 68, 77, 88, 98, 119, 124, 136, 154, 187, 196, 217, 238, 248, 281, 308, 341, 374, 392, 434, 476, 527, 539, 562, 616, 682, 748, 833, 868, 952, 1054, 1078, 1124, 1309, 1364, 1496, 1519, 1666, 1736, 1967, 2108, 2156, 2248, 2387, 2618, 2728, 3038, 3091, 3332, 3689, 3934, 4216, 4312, 4774, 4777, 5236, 5797, 6076, 6182, 6664, 7378, 7868, 8711, 9163, 9548, 9554, 10472, 11594, 12152, 12364, 13769, 14756, 15736, 16709, 17422, 18326, 19096, 19108, 21637, 23188, 24728, 25823, 27538, 29512, 33418, 33439, 34844, 36652, 38216, 40579, 43274, 46376, 51646, 52547, 55076, 60977, 66836, 66878, 69688, 73304, 81158, 86548, 95821, 103292, 105094, 110152, 121954, 133672, 133756, 148087, 151459, 162316, 173096, 191642, 206584, 210188, 234073, 243908, 267512, 284053, 296174, 302918, 324632, 367829, 383284, 420376, 426839, 468146, 487816, 568106, 592348, 605836, 670747, 735658, 766568, 853678, 936292, 1036609, 1136212, 1184696, 1211672, 1341494, 1471316, 1628957, 1707356, 1872584, 2073218, 2272424, 2574803, 2682988, 2942632, 3257914, 3414712, 4146436, 4695229, 5149606, 5365976, 6515828, 7256263, 8292872, 9390458, 10299212, 11402699, 13031656, 14512526, 18780916, 20598424, 22805398, 29025052, 37561832, 45610796, 58050104, 79818893, 91221592, 159637786, 319275572, 638551144]

約数ペア:

[(1, 638551144), (2, 319275572), (4, 159637786), (7, 91221592), (8, 79818893), (11, 58050104), (14, 45610796), (17, 37561832), (22, 29025052), (28, 22805398), (31, 20598424), (34, 18780916), (44, 14512526), (49, 13031656), (56, 11402699), (62, 10299212), (68, 9390458), (77, 8292872), (88, 7256263), (98, 6515828), (119, 5365976), (124, 5149606), (136, 4695229), (154, 4146436), (187, 3414712), (196, 3257914), (217, 2942632), (238, 2682988), (248, 2574803), (281, 2272424), (308, 2073218), (341, 1872584), (374, 1707356), (392, 1628957), (434, 1471316), (476, 1341494), (527, 1211672), (539, 1184696), (562, 1136212), (616, 1036609), (682, 936292), (748, 853678), (833, 766568), (868, 735658), (952, 670747), (1054, 605836), (1078, 592348), (1124, 568106), (1309, 487816), (1364, 468146), (1496, 426839), (1519, 420376), (1666, 383284), (1736, 367829), (1967, 324632), (2108, 302918), (2156, 296174), (2248, 284053), (2387, 267512), (2618, 243908), (2728, 234073), (3038, 210188), (3091, 206584), (3332, 191642), (3689, 173096), (3934, 162316), (4216, 151459), (4312, 148087), (4774, 133756), (4777, 133672), (5236, 121954), (5797, 110152), (6076, 105094), (6182, 103292), (6664, 95821), (7378, 86548), (7868, 81158), (8711, 73304), (9163, 69688), (9548, 66878), (9554, 66836), (10472, 60977), (11594, 55076), (12152, 52547), (12364, 51646), (13769, 46376), (14756, 43274), (15736, 40579), (16709, 38216), (17422, 36652), (18326, 34844), (19096, 33439), (19108, 33418), (21637, 29512), (23188, 27538), (24728, 25823)]