28471950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:219

約数の個数: 144

約数和(自身を含む): 85577856

約数和(自身を除く): 57105906

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 30, 31, 39, 45, 50, 62, 65, 75, 78, 90, 93, 117, 130, 150, 155, 157, 186, 195, 225, 234, 279, 310, 314, 325, 390, 403, 450, 465, 471, 558, 585, 650, 775, 785, 806, 930, 942, 975, 1170, 1209, 1395, 1413, 1550, 1570, 1950, 2015, 2041, 2325, 2355, 2418, 2790, 2826, 2925, 3627, 3925, 4030, 4082, 4650, 4710, 4867, 5850, 6045, 6123, 6975, 7065, 7254, 7850, 9734, 10075, 10205, 11775, 12090, 12246, 13950, 14130, 14601, 18135, 18369, 20150, 20410, 23550, 24335, 29202, 30225, 30615, 35325, 36270, 36738, 43803, 48670, 51025, 60450, 61230, 63271, 70650, 73005, 87606, 90675, 91845, 102050, 121675, 126542, 146010, 153075, 181350, 183690, 189813, 219015, 243350, 306150, 316355, 365025, 379626, 438030, 459225, 569439, 632710, 730050, 918450, 949065, 1095075, 1138878, 1581775, 1898130, 2190150, 2847195, 3163550, 4745325, 5694390, 9490650, 14235975, 28471950]

約数ペア:

[(1, 28471950), (2, 14235975), (3, 9490650), (5, 5694390), (6, 4745325), (9, 3163550), (10, 2847195), (13, 2190150), (15, 1898130), (18, 1581775), (25, 1138878), (26, 1095075), (30, 949065), (31, 918450), (39, 730050), (45, 632710), (50, 569439), (62, 459225), (65, 438030), (75, 379626), (78, 365025), (90, 316355), (93, 306150), (117, 243350), (130, 219015), (150, 189813), (155, 183690), (157, 181350), (186, 153075), (195, 146010), (225, 126542), (234, 121675), (279, 102050), (310, 91845), (314, 90675), (325, 87606), (390, 73005), (403, 70650), (450, 63271), (465, 61230), (471, 60450), (558, 51025), (585, 48670), (650, 43803), (775, 36738), (785, 36270), (806, 35325), (930, 30615), (942, 30225), (975, 29202), (1170, 24335), (1209, 23550), (1395, 20410), (1413, 20150), (1550, 18369), (1570, 18135), (1950, 14601), (2015, 14130), (2041, 13950), (2325, 12246), (2355, 12090), (2418, 11775), (2790, 10205), (2826, 10075), (2925, 9734), (3627, 7850), (3925, 7254), (4030, 7065), (4082, 6975), (4650, 6123), (4710, 6045), (4867, 5850)]