19917510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{421}}^1$

素因数の和:533

約数の個数: 64

約数和(自身を含む): 51045120

約数和(自身を除く): 31127610

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 83, 95, 114, 166, 190, 249, 285, 415, 421, 498, 570, 830, 842, 1245, 1263, 1577, 2105, 2490, 2526, 3154, 4210, 4731, 6315, 7885, 7999, 9462, 12630, 15770, 15998, 23655, 23997, 34943, 39995, 47310, 47994, 69886, 79990, 104829, 119985, 174715, 209658, 239970, 349430, 524145, 663917, 1048290, 1327834, 1991751, 3319585, 3983502, 6639170, 9958755, 19917510]

約数ペア:

[(1, 19917510), (2, 9958755), (3, 6639170), (5, 3983502), (6, 3319585), (10, 1991751), (15, 1327834), (19, 1048290), (30, 663917), (38, 524145), (57, 349430), (83, 239970), (95, 209658), (114, 174715), (166, 119985), (190, 104829), (249, 79990), (285, 69886), (415, 47994), (421, 47310), (498, 39995), (570, 34943), (830, 23997), (842, 23655), (1245, 15998), (1263, 15770), (1577, 12630), (2105, 9462), (2490, 7999), (2526, 7885), (3154, 6315), (4210, 4731)]