291490920

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{38557}}^1$

素因数の和:38584

約数の個数: 128

約数和(自身を含む): 1110470400

約数和(自身を除く): 818979480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 38557, 77114, 115671, 154228, 192785, 231342, 269899, 308456, 347013, 385570, 462684, 539798, 578355, 694026, 771140, 809697, 925368, 1041039, 1079596, 1156710, 1349495, 1388052, 1542280, 1619394, 1735065, 2082078, 2159192, 2313420, 2429091, 2698990, 2776104, 3238788, 3470130, 4048485, 4164156, 4626840, 4858182, 5205195, 5397980, 6477576, 6940260, 7287273, 8096970, 8328312, 9716364, 10410390, 10795960, 12145455, 13880520, 14574546, 16193940, 19432728, 20820780, 24290910, 29149092, 32387880, 36436365, 41641560, 48581820, 58298184, 72872730, 97163640, 145745460, 291490920]

約数ペア:

[(1, 291490920), (2, 145745460), (3, 97163640), (4, 72872730), (5, 58298184), (6, 48581820), (7, 41641560), (8, 36436365), (9, 32387880), (10, 29149092), (12, 24290910), (14, 20820780), (15, 19432728), (18, 16193940), (20, 14574546), (21, 13880520), (24, 12145455), (27, 10795960), (28, 10410390), (30, 9716364), (35, 8328312), (36, 8096970), (40, 7287273), (42, 6940260), (45, 6477576), (54, 5397980), (56, 5205195), (60, 4858182), (63, 4626840), (70, 4164156), (72, 4048485), (84, 3470130), (90, 3238788), (105, 2776104), (108, 2698990), (120, 2429091), (126, 2313420), (135, 2159192), (140, 2082078), (168, 1735065), (180, 1619394), (189, 1542280), (210, 1388052), (216, 1349495), (252, 1156710), (270, 1079596), (280, 1041039), (315, 925368), (360, 809697), (378, 771140), (420, 694026), (504, 578355), (540, 539798), (630, 462684), (756, 385570), (840, 347013), (945, 308456), (1080, 269899), (1260, 231342), (1512, 192785), (1890, 154228), (2520, 115671), (3780, 77114), (7560, 38557)]