1990663020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1\times {\mathrm{271}}^1$

素因数の和:573

約数の個数: 192

約数和(自身を含む): 6346260480

約数和(自身を除く): 4355597460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 90, 108, 122, 135, 180, 183, 223, 244, 270, 271, 305, 366, 446, 540, 542, 549, 610, 669, 732, 813, 892, 915, 1084, 1098, 1115, 1220, 1338, 1355, 1626, 1647, 1830, 2007, 2196, 2230, 2439, 2676, 2710, 2745, 3252, 3294, 3345, 3660, 4014, 4065, 4460, 4878, 5420, 5490, 6021, 6588, 6690, 7317, 8028, 8130, 8235, 9756, 10035, 10980, 12042, 12195, 13380, 13603, 14634, 16260, 16470, 16531, 20070, 24084, 24390, 27206, 29268, 30105, 32940, 33062, 36585, 40140, 40809, 48780, 49593, 54412, 60210, 60433, 66124, 68015, 73170, 81618, 82655, 99186, 120420, 120866, 122427, 136030, 146340, 148779, 163236, 165310, 181299, 198372, 204045, 241732, 244854, 247965, 272060, 297558, 302165, 330620, 362598, 367281, 408090, 446337, 489708, 495930, 543897, 595116, 604330, 612135, 725196, 734562, 743895, 816180, 892674, 906495, 991860, 1087794, 1208660, 1224270, 1469124, 1487790, 1631691, 1785348, 1812990, 1836405, 2175588, 2231685, 2448540, 2719485, 2975580, 3263382, 3625980, 3672810, 3686413, 4463370, 5438970, 6526764, 7345620, 7372826, 8158455, 8926740, 10877940, 11059239, 14745652, 16316910, 18432065, 22118478, 32633820, 33177717, 36864130, 44236956, 55296195, 66355434, 73728260, 99533151, 110592390, 132710868, 165888585, 199066302, 221184780, 331777170, 398132604, 497665755, 663554340, 995331510, 1990663020]

約数ペア:

[(1, 1990663020), (2, 995331510), (3, 663554340), (4, 497665755), (5, 398132604), (6, 331777170), (9, 221184780), (10, 199066302), (12, 165888585), (15, 132710868), (18, 110592390), (20, 99533151), (27, 73728260), (30, 66355434), (36, 55296195), (45, 44236956), (54, 36864130), (60, 33177717), (61, 32633820), (90, 22118478), (108, 18432065), (122, 16316910), (135, 14745652), (180, 11059239), (183, 10877940), (223, 8926740), (244, 8158455), (270, 7372826), (271, 7345620), (305, 6526764), (366, 5438970), (446, 4463370), (540, 3686413), (542, 3672810), (549, 3625980), (610, 3263382), (669, 2975580), (732, 2719485), (813, 2448540), (892, 2231685), (915, 2175588), (1084, 1836405), (1098, 1812990), (1115, 1785348), (1220, 1631691), (1338, 1487790), (1355, 1469124), (1626, 1224270), (1647, 1208660), (1830, 1087794), (2007, 991860), (2196, 906495), (2230, 892674), (2439, 816180), (2676, 743895), (2710, 734562), (2745, 725196), (3252, 612135), (3294, 604330), (3345, 595116), (3660, 543897), (4014, 495930), (4065, 489708), (4460, 446337), (4878, 408090), (5420, 367281), (5490, 362598), (6021, 330620), (6588, 302165), (6690, 297558), (7317, 272060), (8028, 247965), (8130, 244854), (8235, 241732), (9756, 204045), (10035, 198372), (10980, 181299), (12042, 165310), (12195, 163236), (13380, 148779), (13603, 146340), (14634, 136030), (16260, 122427), (16470, 120866), (16531, 120420), (20070, 99186), (24084, 82655), (24390, 81618), (27206, 73170), (29268, 68015), (30105, 66124), (32940, 60433), (33062, 60210), (36585, 54412), (40140, 49593), (40809, 48780)]