28368720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1$

素因数の和:122

約数の個数: 180

約数和(自身を含む): 100845108

約数和(自身を除く): 72476388

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 41, 45, 48, 60, 62, 72, 80, 82, 90, 93, 120, 123, 124, 144, 155, 164, 180, 186, 205, 240, 246, 248, 279, 310, 328, 360, 369, 372, 410, 465, 492, 496, 558, 615, 620, 656, 720, 738, 744, 820, 930, 961, 984, 1116, 1230, 1240, 1271, 1395, 1476, 1488, 1640, 1845, 1860, 1922, 1968, 2232, 2460, 2480, 2542, 2790, 2883, 2952, 3280, 3690, 3720, 3813, 3844, 4464, 4805, 4920, 5084, 5580, 5766, 5904, 6355, 7380, 7440, 7626, 7688, 8649, 9610, 9840, 10168, 11160, 11439, 11532, 12710, 14415, 14760, 15252, 15376, 17298, 19065, 19220, 20336, 22320, 22878, 23064, 25420, 28830, 29520, 30504, 34596, 38130, 38440, 39401, 43245, 45756, 46128, 50840, 57195, 57660, 61008, 69192, 76260, 76880, 78802, 86490, 91512, 101680, 114390, 115320, 118203, 138384, 152520, 157604, 172980, 183024, 197005, 228780, 230640, 236406, 305040, 315208, 345960, 354609, 394010, 457560, 472812, 591015, 630416, 691920, 709218, 788020, 915120, 945624, 1182030, 1418436, 1576040, 1773045, 1891248, 2364060, 2836872, 3152080, 3546090, 4728120, 5673744, 7092180, 9456240, 14184360, 28368720]

約数ペア:

[(1, 28368720), (2, 14184360), (3, 9456240), (4, 7092180), (5, 5673744), (6, 4728120), (8, 3546090), (9, 3152080), (10, 2836872), (12, 2364060), (15, 1891248), (16, 1773045), (18, 1576040), (20, 1418436), (24, 1182030), (30, 945624), (31, 915120), (36, 788020), (40, 709218), (41, 691920), (45, 630416), (48, 591015), (60, 472812), (62, 457560), (72, 394010), (80, 354609), (82, 345960), (90, 315208), (93, 305040), (120, 236406), (123, 230640), (124, 228780), (144, 197005), (155, 183024), (164, 172980), (180, 157604), (186, 152520), (205, 138384), (240, 118203), (246, 115320), (248, 114390), (279, 101680), (310, 91512), (328, 86490), (360, 78802), (369, 76880), (372, 76260), (410, 69192), (465, 61008), (492, 57660), (496, 57195), (558, 50840), (615, 46128), (620, 45756), (656, 43245), (720, 39401), (738, 38440), (744, 38130), (820, 34596), (930, 30504), (961, 29520), (984, 28830), (1116, 25420), (1230, 23064), (1240, 22878), (1271, 22320), (1395, 20336), (1476, 19220), (1488, 19065), (1640, 17298), (1845, 15376), (1860, 15252), (1922, 14760), (1968, 14415), (2232, 12710), (2460, 11532), (2480, 11439), (2542, 11160), (2790, 10168), (2883, 9840), (2952, 9610), (3280, 8649), (3690, 7688), (3720, 7626), (3813, 7440), (3844, 7380), (4464, 6355), (4805, 5904), (4920, 5766), (5084, 5580)]