638783460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{8311}}^1$

素因数の和:8394

約数の個数: 144

約数和(自身を含む): 2251022592

約数和(自身を除く): 1612239132

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 61, 63, 70, 84, 90, 105, 122, 126, 140, 180, 183, 210, 244, 252, 305, 315, 366, 420, 427, 549, 610, 630, 732, 854, 915, 1098, 1220, 1260, 1281, 1708, 1830, 2135, 2196, 2562, 2745, 3660, 3843, 4270, 5124, 5490, 6405, 7686, 8311, 8540, 10980, 12810, 15372, 16622, 19215, 24933, 25620, 33244, 38430, 41555, 49866, 58177, 74799, 76860, 83110, 99732, 116354, 124665, 149598, 166220, 174531, 232708, 249330, 290885, 299196, 349062, 373995, 498660, 506971, 523593, 581770, 698124, 747990, 872655, 1013942, 1047186, 1163540, 1495980, 1520913, 1745310, 2027884, 2094372, 2534855, 2617965, 3041826, 3490620, 3548797, 4562739, 5069710, 5235930, 6083652, 7097594, 7604565, 9125478, 10139420, 10471860, 10646391, 14195188, 15209130, 17743985, 18250956, 21292782, 22813695, 30418260, 31939173, 35487970, 42585564, 45627390, 53231955, 63878346, 70975940, 91254780, 106463910, 127756692, 159695865, 212927820, 319391730, 638783460]

約数ペア:

[(1, 638783460), (2, 319391730), (3, 212927820), (4, 159695865), (5, 127756692), (6, 106463910), (7, 91254780), (9, 70975940), (10, 63878346), (12, 53231955), (14, 45627390), (15, 42585564), (18, 35487970), (20, 31939173), (21, 30418260), (28, 22813695), (30, 21292782), (35, 18250956), (36, 17743985), (42, 15209130), (45, 14195188), (60, 10646391), (61, 10471860), (63, 10139420), (70, 9125478), (84, 7604565), (90, 7097594), (105, 6083652), (122, 5235930), (126, 5069710), (140, 4562739), (180, 3548797), (183, 3490620), (210, 3041826), (244, 2617965), (252, 2534855), (305, 2094372), (315, 2027884), (366, 1745310), (420, 1520913), (427, 1495980), (549, 1163540), (610, 1047186), (630, 1013942), (732, 872655), (854, 747990), (915, 698124), (1098, 581770), (1220, 523593), (1260, 506971), (1281, 498660), (1708, 373995), (1830, 349062), (2135, 299196), (2196, 290885), (2562, 249330), (2745, 232708), (3660, 174531), (3843, 166220), (4270, 149598), (5124, 124665), (5490, 116354), (6405, 99732), (7686, 83110), (8311, 76860), (8540, 74799), (10980, 58177), (12810, 49866), (15372, 41555), (16622, 38430), (19215, 33244), (24933, 25620)]