80505450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:277

約数の個数: 144

約数和(自身を含む): 232128000

約数和(自身を除く): 151622550

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 29, 30, 31, 45, 50, 58, 62, 75, 87, 90, 93, 145, 150, 155, 174, 186, 199, 225, 261, 279, 290, 310, 398, 435, 450, 465, 522, 558, 597, 725, 775, 870, 899, 930, 995, 1194, 1305, 1395, 1450, 1550, 1791, 1798, 1990, 2175, 2325, 2610, 2697, 2790, 2985, 3582, 4350, 4495, 4650, 4975, 5394, 5771, 5970, 6169, 6525, 6975, 8091, 8955, 8990, 9950, 11542, 12338, 13050, 13485, 13950, 14925, 16182, 17313, 17910, 18507, 22475, 26970, 28855, 29850, 30845, 34626, 37014, 40455, 44775, 44950, 51939, 55521, 57710, 61690, 67425, 80910, 86565, 89550, 92535, 103878, 111042, 134850, 144275, 154225, 173130, 178901, 185070, 202275, 259695, 277605, 288550, 308450, 357802, 404550, 432825, 462675, 519390, 536703, 555210, 865650, 894505, 925350, 1073406, 1298475, 1388025, 1610109, 1789010, 2596950, 2683515, 2776050, 3220218, 4472525, 5367030, 8050545, 8945050, 13417575, 16101090, 26835150, 40252725, 80505450]

約数ペア:

[(1, 80505450), (2, 40252725), (3, 26835150), (5, 16101090), (6, 13417575), (9, 8945050), (10, 8050545), (15, 5367030), (18, 4472525), (25, 3220218), (29, 2776050), (30, 2683515), (31, 2596950), (45, 1789010), (50, 1610109), (58, 1388025), (62, 1298475), (75, 1073406), (87, 925350), (90, 894505), (93, 865650), (145, 555210), (150, 536703), (155, 519390), (174, 462675), (186, 432825), (199, 404550), (225, 357802), (261, 308450), (279, 288550), (290, 277605), (310, 259695), (398, 202275), (435, 185070), (450, 178901), (465, 173130), (522, 154225), (558, 144275), (597, 134850), (725, 111042), (775, 103878), (870, 92535), (899, 89550), (930, 86565), (995, 80910), (1194, 67425), (1305, 61690), (1395, 57710), (1450, 55521), (1550, 51939), (1791, 44950), (1798, 44775), (1990, 40455), (2175, 37014), (2325, 34626), (2610, 30845), (2697, 29850), (2790, 28855), (2985, 26970), (3582, 22475), (4350, 18507), (4495, 17910), (4650, 17313), (4975, 16182), (5394, 14925), (5771, 13950), (5970, 13485), (6169, 13050), (6525, 12338), (6975, 11542), (8091, 9950), (8955, 8990)]