28420924

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 59351040

約数和(自身を除く): 30930116

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 137, 217, 239, 274, 434, 478, 548, 868, 956, 959, 1673, 1918, 3346, 3836, 4247, 6692, 7409, 8494, 14818, 16988, 29636, 29729, 32743, 51863, 59458, 65486, 103726, 118916, 130972, 207452, 229201, 458402, 916804, 1015033, 2030066, 4060132, 7105231, 14210462, 28420924]

約数ペア:

[(1, 28420924), (2, 14210462), (4, 7105231), (7, 4060132), (14, 2030066), (28, 1015033), (31, 916804), (62, 458402), (124, 229201), (137, 207452), (217, 130972), (239, 118916), (274, 103726), (434, 65486), (478, 59458), (548, 51863), (868, 32743), (956, 29729), (959, 29636), (1673, 16988), (1918, 14818), (3346, 8494), (3836, 7409), (4247, 6692)]