638607480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40013}}^1$

素因数の和:40053

約数の個数: 128

約数和(自身を含む): 2304806400

約数和(自身を除く): 1666198920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1330, 1596, 1995, 2280, 2660, 3192, 3990, 5320, 7980, 15960, 40013, 80026, 120039, 160052, 200065, 240078, 280091, 320104, 400130, 480156, 560182, 600195, 760247, 800260, 840273, 960312, 1120364, 1200390, 1400455, 1520494, 1600520, 1680546, 2240728, 2280741, 2400780, 2800910, 3040988, 3361092, 3801235, 4201365, 4561482, 4801560, 5321729, 5601820, 6081976, 6722184, 7602470, 8402730, 9122964, 10643458, 11203640, 11403705, 15204940, 15965187, 16805460, 18245928, 21286916, 22807410, 26608645, 30409880, 31930374, 33610920, 42573832, 45614820, 53217290, 63860748, 79825935, 91229640, 106434580, 127721496, 159651870, 212869160, 319303740, 638607480]

約数ペア:

[(1, 638607480), (2, 319303740), (3, 212869160), (4, 159651870), (5, 127721496), (6, 106434580), (7, 91229640), (8, 79825935), (10, 63860748), (12, 53217290), (14, 45614820), (15, 42573832), (19, 33610920), (20, 31930374), (21, 30409880), (24, 26608645), (28, 22807410), (30, 21286916), (35, 18245928), (38, 16805460), (40, 15965187), (42, 15204940), (56, 11403705), (57, 11203640), (60, 10643458), (70, 9122964), (76, 8402730), (84, 7602470), (95, 6722184), (105, 6081976), (114, 5601820), (120, 5321729), (133, 4801560), (140, 4561482), (152, 4201365), (168, 3801235), (190, 3361092), (210, 3040988), (228, 2800910), (266, 2400780), (280, 2280741), (285, 2240728), (380, 1680546), (399, 1600520), (420, 1520494), (456, 1400455), (532, 1200390), (570, 1120364), (665, 960312), (760, 840273), (798, 800260), (840, 760247), (1064, 600195), (1140, 560182), (1330, 480156), (1596, 400130), (1995, 320104), (2280, 280091), (2660, 240078), (3192, 200065), (3990, 160052), (5320, 120039), (7980, 80026), (15960, 40013)]