138481980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1951}}^1$

素因数の和:1996

約数の個数: 144

約数和(自身を含む): 480098304

約数和(自身を除く): 341616324

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 169, 182, 195, 210, 260, 273, 338, 364, 390, 420, 455, 507, 546, 676, 780, 845, 910, 1014, 1092, 1183, 1365, 1690, 1820, 1951, 2028, 2366, 2535, 2730, 3380, 3549, 3902, 4732, 5070, 5460, 5853, 5915, 7098, 7804, 9755, 10140, 11706, 11830, 13657, 14196, 17745, 19510, 23412, 23660, 25363, 27314, 29265, 35490, 39020, 40971, 50726, 54628, 58530, 68285, 70980, 76089, 81942, 101452, 117060, 126815, 136570, 152178, 163884, 177541, 204855, 253630, 273140, 304356, 329719, 355082, 380445, 409710, 507260, 532623, 659438, 710164, 760890, 819420, 887705, 989157, 1065246, 1318876, 1521780, 1648595, 1775410, 1978314, 2130492, 2308033, 2663115, 3297190, 3550820, 3956628, 4616066, 4945785, 5326230, 6594380, 6924099, 9232132, 9891570, 10652460, 11540165, 13848198, 19783140, 23080330, 27696396, 34620495, 46160660, 69240990, 138481980]

約数ペア:

[(1, 138481980), (2, 69240990), (3, 46160660), (4, 34620495), (5, 27696396), (6, 23080330), (7, 19783140), (10, 13848198), (12, 11540165), (13, 10652460), (14, 9891570), (15, 9232132), (20, 6924099), (21, 6594380), (26, 5326230), (28, 4945785), (30, 4616066), (35, 3956628), (39, 3550820), (42, 3297190), (52, 2663115), (60, 2308033), (65, 2130492), (70, 1978314), (78, 1775410), (84, 1648595), (91, 1521780), (105, 1318876), (130, 1065246), (140, 989157), (156, 887705), (169, 819420), (182, 760890), (195, 710164), (210, 659438), (260, 532623), (273, 507260), (338, 409710), (364, 380445), (390, 355082), (420, 329719), (455, 304356), (507, 273140), (546, 253630), (676, 204855), (780, 177541), (845, 163884), (910, 152178), (1014, 136570), (1092, 126815), (1183, 117060), (1365, 101452), (1690, 81942), (1820, 76089), (1951, 70980), (2028, 68285), (2366, 58530), (2535, 54628), (2730, 50726), (3380, 40971), (3549, 39020), (3902, 35490), (4732, 29265), (5070, 27314), (5460, 25363), (5853, 23660), (5915, 23412), (7098, 19510), (7804, 17745), (9755, 14196), (10140, 13657), (11706, 11830)]