291182940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{20477}}^1$

素因数の和:20571

約数の個数: 72

約数和(自身を含む): 894479040

約数和(自身を除く): 603296100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1422, 1580, 2370, 2844, 3555, 4740, 7110, 14220, 20477, 40954, 61431, 81908, 102385, 122862, 184293, 204770, 245724, 307155, 368586, 409540, 614310, 737172, 921465, 1228620, 1617683, 1842930, 3235366, 3685860, 4853049, 6470732, 8088415, 9706098, 14559147, 16176830, 19412196, 24265245, 29118294, 32353660, 48530490, 58236588, 72795735, 97060980, 145591470, 291182940]

約数ペア:

[(1, 291182940), (2, 145591470), (3, 97060980), (4, 72795735), (5, 58236588), (6, 48530490), (9, 32353660), (10, 29118294), (12, 24265245), (15, 19412196), (18, 16176830), (20, 14559147), (30, 9706098), (36, 8088415), (45, 6470732), (60, 4853049), (79, 3685860), (90, 3235366), (158, 1842930), (180, 1617683), (237, 1228620), (316, 921465), (395, 737172), (474, 614310), (711, 409540), (790, 368586), (948, 307155), (1185, 245724), (1422, 204770), (1580, 184293), (2370, 122862), (2844, 102385), (3555, 81908), (4740, 61431), (7110, 40954), (14220, 20477)]