18707260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:275

約数の個数: 96

約数和(自身を含む): 47867904

約数和(自身を除く): 29160644

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 31, 44, 52, 55, 62, 65, 110, 124, 130, 143, 155, 211, 220, 260, 286, 310, 341, 403, 422, 572, 620, 682, 715, 806, 844, 1055, 1364, 1430, 1612, 1705, 2015, 2110, 2321, 2743, 2860, 3410, 4030, 4220, 4433, 4642, 5486, 6541, 6820, 8060, 8866, 9284, 10972, 11605, 13082, 13715, 17732, 22165, 23210, 26164, 27430, 30173, 32705, 44330, 46420, 54860, 60346, 65410, 71951, 85033, 88660, 120692, 130820, 143902, 150865, 170066, 287804, 301730, 340132, 359755, 425165, 603460, 719510, 850330, 935363, 1439020, 1700660, 1870726, 3741452, 4676815, 9353630, 18707260]

約数ペア:

[(1, 18707260), (2, 9353630), (4, 4676815), (5, 3741452), (10, 1870726), (11, 1700660), (13, 1439020), (20, 935363), (22, 850330), (26, 719510), (31, 603460), (44, 425165), (52, 359755), (55, 340132), (62, 301730), (65, 287804), (110, 170066), (124, 150865), (130, 143902), (143, 130820), (155, 120692), (211, 88660), (220, 85033), (260, 71951), (286, 65410), (310, 60346), (341, 54860), (403, 46420), (422, 44330), (572, 32705), (620, 30173), (682, 27430), (715, 26164), (806, 23210), (844, 22165), (1055, 17732), (1364, 13715), (1430, 13082), (1612, 11605), (1705, 10972), (2015, 9284), (2110, 8866), (2321, 8060), (2743, 6820), (2860, 6541), (3410, 5486), (4030, 4642), (4220, 4433)]