205546120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:407

約数の個数: 128

約数和(自身を含む): 528353280

約数和(自身を除く): 322807160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 41, 52, 62, 65, 82, 104, 124, 130, 155, 164, 205, 248, 260, 310, 311, 328, 403, 410, 520, 533, 620, 622, 806, 820, 1066, 1240, 1244, 1271, 1555, 1612, 1640, 2015, 2132, 2488, 2542, 2665, 3110, 3224, 4030, 4043, 4264, 5084, 5330, 6220, 6355, 8060, 8086, 9641, 10168, 10660, 12440, 12710, 12751, 16120, 16172, 16523, 19282, 20215, 21320, 25420, 25502, 32344, 33046, 38564, 40430, 48205, 50840, 51004, 63755, 66092, 77128, 80860, 82615, 96410, 102008, 125333, 127510, 132184, 161720, 165230, 165763, 192820, 250666, 255020, 330460, 331526, 385640, 395281, 501332, 510040, 626665, 660920, 663052, 790562, 828815, 1002664, 1253330, 1326104, 1581124, 1657630, 1976405, 2506660, 3162248, 3315260, 3952810, 5013320, 5138653, 6630520, 7905620, 10277306, 15811240, 20554612, 25693265, 41109224, 51386530, 102773060, 205546120]

約数ペア:

[(1, 205546120), (2, 102773060), (4, 51386530), (5, 41109224), (8, 25693265), (10, 20554612), (13, 15811240), (20, 10277306), (26, 7905620), (31, 6630520), (40, 5138653), (41, 5013320), (52, 3952810), (62, 3315260), (65, 3162248), (82, 2506660), (104, 1976405), (124, 1657630), (130, 1581124), (155, 1326104), (164, 1253330), (205, 1002664), (248, 828815), (260, 790562), (310, 663052), (311, 660920), (328, 626665), (403, 510040), (410, 501332), (520, 395281), (533, 385640), (620, 331526), (622, 330460), (806, 255020), (820, 250666), (1066, 192820), (1240, 165763), (1244, 165230), (1271, 161720), (1555, 132184), (1612, 127510), (1640, 125333), (2015, 102008), (2132, 96410), (2488, 82615), (2542, 80860), (2665, 77128), (3110, 66092), (3224, 63755), (4030, 51004), (4043, 50840), (4264, 48205), (5084, 40430), (5330, 38564), (6220, 33046), (6355, 32344), (8060, 25502), (8086, 25420), (9641, 21320), (10168, 20215), (10660, 19282), (12440, 16523), (12710, 16172), (12751, 16120)]