19798770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:451

約数の個数: 64

約数和(自身を含む): 49996800

約数和(自身を除く): 30198030

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 61, 62, 93, 122, 155, 183, 186, 305, 310, 349, 366, 465, 610, 698, 915, 930, 1047, 1745, 1830, 1891, 2094, 3490, 3782, 5235, 5673, 9455, 10470, 10819, 11346, 18910, 21289, 21638, 28365, 32457, 42578, 54095, 56730, 63867, 64914, 106445, 108190, 127734, 162285, 212890, 319335, 324570, 638670, 659959, 1319918, 1979877, 3299795, 3959754, 6599590, 9899385, 19798770]

約数ペア:

[(1, 19798770), (2, 9899385), (3, 6599590), (5, 3959754), (6, 3299795), (10, 1979877), (15, 1319918), (30, 659959), (31, 638670), (61, 324570), (62, 319335), (93, 212890), (122, 162285), (155, 127734), (183, 108190), (186, 106445), (305, 64914), (310, 63867), (349, 56730), (366, 54095), (465, 42578), (610, 32457), (698, 28365), (915, 21638), (930, 21289), (1047, 18910), (1745, 11346), (1830, 10819), (1891, 10470), (2094, 9455), (3490, 5673), (3782, 5235)]