20122844

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 42147840

約数和(自身を除く): 22024996

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 97, 124, 194, 217, 239, 388, 434, 478, 679, 868, 956, 1358, 1673, 2716, 3007, 3346, 6014, 6692, 7409, 12028, 14818, 21049, 23183, 29636, 42098, 46366, 51863, 84196, 92732, 103726, 162281, 207452, 324562, 649124, 718673, 1437346, 2874692, 5030711, 10061422, 20122844]

約数ペア:

[(1, 20122844), (2, 10061422), (4, 5030711), (7, 2874692), (14, 1437346), (28, 718673), (31, 649124), (62, 324562), (97, 207452), (124, 162281), (194, 103726), (217, 92732), (239, 84196), (388, 51863), (434, 46366), (478, 42098), (679, 29636), (868, 23183), (956, 21049), (1358, 14818), (1673, 12028), (2716, 7409), (3007, 6692), (3346, 6014)]