20572128

素因数分解:

$2^5\times 3^2\times {\mathrm{61}}^1\times {\mathrm{1171}}^1$

素因数の和:1248

約数の個数: 72

約数和(自身を含む): 59511816

約数和(自身を除く): 38939688

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 61, 72, 96, 122, 144, 183, 244, 288, 366, 488, 549, 732, 976, 1098, 1171, 1464, 1952, 2196, 2342, 2928, 3513, 4392, 4684, 5856, 7026, 8784, 9368, 10539, 14052, 17568, 18736, 21078, 28104, 37472, 42156, 56208, 71431, 84312, 112416, 142862, 168624, 214293, 285724, 337248, 428586, 571448, 642879, 857172, 1142896, 1285758, 1714344, 2285792, 2571516, 3428688, 5143032, 6857376, 10286064, 20572128]

約数ペア:

[(1, 20572128), (2, 10286064), (3, 6857376), (4, 5143032), (6, 3428688), (8, 2571516), (9, 2285792), (12, 1714344), (16, 1285758), (18, 1142896), (24, 857172), (32, 642879), (36, 571448), (48, 428586), (61, 337248), (72, 285724), (96, 214293), (122, 168624), (144, 142862), (183, 112416), (244, 84312), (288, 71431), (366, 56208), (488, 42156), (549, 37472), (732, 28104), (976, 21078), (1098, 18736), (1171, 17568), (1464, 14052), (1952, 10539), (2196, 9368), (2342, 8784), (2928, 7026), (3513, 5856), (4392, 4684)]