18729270

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:195

約数の個数: 144

約数和(自身を含む): 58900608

約数和(自身を除く): 40171338

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 31, 35, 42, 45, 49, 62, 63, 70, 90, 93, 98, 105, 126, 137, 147, 155, 186, 210, 217, 245, 274, 279, 294, 310, 315, 411, 434, 441, 465, 490, 558, 630, 651, 685, 735, 822, 882, 930, 959, 1085, 1233, 1302, 1370, 1395, 1470, 1519, 1918, 1953, 2055, 2170, 2205, 2466, 2790, 2877, 3038, 3255, 3906, 4110, 4247, 4410, 4557, 4795, 5754, 6165, 6510, 6713, 7595, 8494, 8631, 9114, 9590, 9765, 12330, 12741, 13426, 13671, 14385, 15190, 17262, 19530, 20139, 21235, 22785, 25482, 27342, 28770, 29729, 33565, 38223, 40278, 42470, 43155, 45570, 59458, 60417, 63705, 67130, 68355, 76446, 86310, 89187, 100695, 120834, 127410, 136710, 148645, 178374, 191115, 201390, 208103, 267561, 297290, 302085, 382230, 416206, 445935, 535122, 604170, 624309, 891870, 1040515, 1248618, 1337805, 1872927, 2081030, 2675610, 3121545, 3745854, 6243090, 9364635, 18729270]

約数ペア:

[(1, 18729270), (2, 9364635), (3, 6243090), (5, 3745854), (6, 3121545), (7, 2675610), (9, 2081030), (10, 1872927), (14, 1337805), (15, 1248618), (18, 1040515), (21, 891870), (30, 624309), (31, 604170), (35, 535122), (42, 445935), (45, 416206), (49, 382230), (62, 302085), (63, 297290), (70, 267561), (90, 208103), (93, 201390), (98, 191115), (105, 178374), (126, 148645), (137, 136710), (147, 127410), (155, 120834), (186, 100695), (210, 89187), (217, 86310), (245, 76446), (274, 68355), (279, 67130), (294, 63705), (310, 60417), (315, 59458), (411, 45570), (434, 43155), (441, 42470), (465, 40278), (490, 38223), (558, 33565), (630, 29729), (651, 28770), (685, 27342), (735, 25482), (822, 22785), (882, 21235), (930, 20139), (959, 19530), (1085, 17262), (1233, 15190), (1302, 14385), (1370, 13671), (1395, 13426), (1470, 12741), (1519, 12330), (1918, 9765), (1953, 9590), (2055, 9114), (2170, 8631), (2205, 8494), (2466, 7595), (2790, 6713), (2877, 6510), (3038, 6165), (3255, 5754), (3906, 4795), (4110, 4557), (4247, 4410)]