19491720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:219

約数の個数: 128

約数和(自身を含む): 62899200

約数和(自身を除く): 43407480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 83, 95, 103, 114, 120, 152, 166, 190, 206, 228, 249, 285, 309, 332, 380, 412, 415, 456, 498, 515, 570, 618, 664, 760, 824, 830, 996, 1030, 1140, 1236, 1245, 1545, 1577, 1660, 1957, 1992, 2060, 2280, 2472, 2490, 3090, 3154, 3320, 3914, 4120, 4731, 4980, 5871, 6180, 6308, 7828, 7885, 8549, 9462, 9785, 9960, 11742, 12360, 12616, 15656, 15770, 17098, 18924, 19570, 23484, 23655, 25647, 29355, 31540, 34196, 37848, 39140, 42745, 46968, 47310, 51294, 58710, 63080, 68392, 78280, 85490, 94620, 102588, 117420, 128235, 162431, 170980, 189240, 205176, 234840, 256470, 324862, 341960, 487293, 512940, 649724, 812155, 974586, 1025880, 1299448, 1624310, 1949172, 2436465, 3248620, 3898344, 4872930, 6497240, 9745860, 19491720]

約数ペア:

[(1, 19491720), (2, 9745860), (3, 6497240), (4, 4872930), (5, 3898344), (6, 3248620), (8, 2436465), (10, 1949172), (12, 1624310), (15, 1299448), (19, 1025880), (20, 974586), (24, 812155), (30, 649724), (38, 512940), (40, 487293), (57, 341960), (60, 324862), (76, 256470), (83, 234840), (95, 205176), (103, 189240), (114, 170980), (120, 162431), (152, 128235), (166, 117420), (190, 102588), (206, 94620), (228, 85490), (249, 78280), (285, 68392), (309, 63080), (332, 58710), (380, 51294), (412, 47310), (415, 46968), (456, 42745), (498, 39140), (515, 37848), (570, 34196), (618, 31540), (664, 29355), (760, 25647), (824, 23655), (830, 23484), (996, 19570), (1030, 18924), (1140, 17098), (1236, 15770), (1245, 15656), (1545, 12616), (1577, 12360), (1660, 11742), (1957, 9960), (1992, 9785), (2060, 9462), (2280, 8549), (2472, 7885), (2490, 7828), (3090, 6308), (3154, 6180), (3320, 5871), (3914, 4980), (4120, 4731)]