19485660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^2$

素因数の和:231

約数の個数: 72

約数和(自身を含む): 56525616

約数和(自身を除く): 37039956

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 89, 123, 164, 178, 205, 246, 267, 356, 410, 445, 492, 534, 615, 820, 890, 1068, 1230, 1335, 1780, 2460, 2670, 3649, 5340, 7298, 7921, 10947, 14596, 15842, 18245, 21894, 23763, 31684, 36490, 39605, 43788, 47526, 54735, 72980, 79210, 95052, 109470, 118815, 158420, 218940, 237630, 324761, 475260, 649522, 974283, 1299044, 1623805, 1948566, 3247610, 3897132, 4871415, 6495220, 9742830, 19485660]

約数ペア:

[(1, 19485660), (2, 9742830), (3, 6495220), (4, 4871415), (5, 3897132), (6, 3247610), (10, 1948566), (12, 1623805), (15, 1299044), (20, 974283), (30, 649522), (41, 475260), (60, 324761), (82, 237630), (89, 218940), (123, 158420), (164, 118815), (178, 109470), (205, 95052), (246, 79210), (267, 72980), (356, 54735), (410, 47526), (445, 43788), (492, 39605), (534, 36490), (615, 31684), (820, 23763), (890, 21894), (1068, 18245), (1230, 15842), (1335, 14596), (1780, 10947), (2460, 7921), (2670, 7298), (3649, 5340)]