18996880640

素因数分解:

$2^8\times 5^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1\times {\mathrm{1097}}^1$

素因数の和:1364

約数の個数: 144

約数和(自身を含む): 46376463168

約数和(自身を除く): 27379582528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 128, 160, 163, 166, 256, 320, 326, 332, 415, 640, 652, 664, 815, 830, 1097, 1280, 1304, 1328, 1630, 1660, 2194, 2608, 2656, 3260, 3320, 4388, 5216, 5312, 5485, 6520, 6640, 8776, 10432, 10624, 10970, 13040, 13280, 13529, 17552, 20864, 21248, 21940, 26080, 26560, 27058, 35104, 41728, 43880, 52160, 53120, 54116, 67645, 70208, 87760, 91051, 104320, 106240, 108232, 135290, 140416, 175520, 178811, 182102, 208640, 216464, 270580, 280832, 351040, 357622, 364204, 432928, 455255, 541160, 702080, 715244, 728408, 865856, 894055, 910510, 1082320, 1404160, 1430488, 1456816, 1731712, 1788110, 1821020, 2164640, 2860976, 2913632, 3463424, 3576220, 3642040, 4329280, 5721952, 5827264, 7152440, 7284080, 8658560, 11443904, 11654528, 14304880, 14568160, 14841313, 17317120, 22887808, 23309056, 28609760, 29136320, 29682626, 45775616, 57219520, 58272640, 59365252, 74206565, 114439040, 116545280, 118730504, 148413130, 228878080, 237461008, 296826260, 474922016, 593652520, 949844032, 1187305040, 1899688064, 2374610080, 3799376128, 4749220160, 9498440320, 18996880640]

約数ペア:

[(1, 18996880640), (2, 9498440320), (4, 4749220160), (5, 3799376128), (8, 2374610080), (10, 1899688064), (16, 1187305040), (20, 949844032), (32, 593652520), (40, 474922016), (64, 296826260), (80, 237461008), (83, 228878080), (128, 148413130), (160, 118730504), (163, 116545280), (166, 114439040), (256, 74206565), (320, 59365252), (326, 58272640), (332, 57219520), (415, 45775616), (640, 29682626), (652, 29136320), (664, 28609760), (815, 23309056), (830, 22887808), (1097, 17317120), (1280, 14841313), (1304, 14568160), (1328, 14304880), (1630, 11654528), (1660, 11443904), (2194, 8658560), (2608, 7284080), (2656, 7152440), (3260, 5827264), (3320, 5721952), (4388, 4329280), (5216, 3642040), (5312, 3576220), (5485, 3463424), (6520, 2913632), (6640, 2860976), (8776, 2164640), (10432, 1821020), (10624, 1788110), (10970, 1731712), (13040, 1456816), (13280, 1430488), (13529, 1404160), (17552, 1082320), (20864, 910510), (21248, 894055), (21940, 865856), (26080, 728408), (26560, 715244), (27058, 702080), (35104, 541160), (41728, 455255), (43880, 432928), (52160, 364204), (53120, 357622), (54116, 351040), (67645, 280832), (70208, 270580), (87760, 216464), (91051, 208640), (104320, 182102), (106240, 178811), (108232, 175520), (135290, 140416)]