20783950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:130

約数の個数: 96

約数和(自身を含む): 46282752

約数和(自身を除く): 25498802

約数列:

[1, 2, 5, 10, 11, 22, 23, 25, 31, 46, 50, 53, 55, 62, 106, 110, 115, 155, 230, 253, 265, 275, 310, 341, 506, 530, 550, 575, 583, 682, 713, 775, 1150, 1166, 1219, 1265, 1325, 1426, 1550, 1643, 1705, 2438, 2530, 2650, 2915, 3286, 3410, 3565, 5830, 6095, 6325, 7130, 7843, 8215, 8525, 12190, 12650, 13409, 14575, 15686, 16430, 17050, 17825, 18073, 26818, 29150, 30475, 35650, 36146, 37789, 39215, 41075, 60950, 67045, 75578, 78430, 82150, 90365, 134090, 180730, 188945, 196075, 335225, 377890, 392150, 415679, 451825, 670450, 831358, 903650, 944725, 1889450, 2078395, 4156790, 10391975, 20783950]

約数ペア:

[(1, 20783950), (2, 10391975), (5, 4156790), (10, 2078395), (11, 1889450), (22, 944725), (23, 903650), (25, 831358), (31, 670450), (46, 451825), (50, 415679), (53, 392150), (55, 377890), (62, 335225), (106, 196075), (110, 188945), (115, 180730), (155, 134090), (230, 90365), (253, 82150), (265, 78430), (275, 75578), (310, 67045), (341, 60950), (506, 41075), (530, 39215), (550, 37789), (575, 36146), (583, 35650), (682, 30475), (713, 29150), (775, 26818), (1150, 18073), (1166, 17825), (1219, 17050), (1265, 16430), (1325, 15686), (1426, 14575), (1550, 13409), (1643, 12650), (1705, 12190), (2438, 8525), (2530, 8215), (2650, 7843), (2915, 7130), (3286, 6325), (3410, 6095), (3565, 5830)]