71172990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{16139}}^1$

素因数の和:16166

約数の個数: 72

約数和(自身を含む): 215275320

約数和(自身を除く): 144102330

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 16139, 32278, 48417, 80695, 96834, 112973, 145251, 161390, 225946, 242085, 290502, 338919, 484170, 564865, 677838, 726255, 790811, 1016757, 1129730, 1452510, 1581622, 1694595, 2033514, 2372433, 3389190, 3954055, 4744866, 5083785, 7117299, 7908110, 10167570, 11862165, 14234598, 23724330, 35586495, 71172990]

約数ペア:

[(1, 71172990), (2, 35586495), (3, 23724330), (5, 14234598), (6, 11862165), (7, 10167570), (9, 7908110), (10, 7117299), (14, 5083785), (15, 4744866), (18, 3954055), (21, 3389190), (30, 2372433), (35, 2033514), (42, 1694595), (45, 1581622), (49, 1452510), (63, 1129730), (70, 1016757), (90, 790811), (98, 726255), (105, 677838), (126, 564865), (147, 484170), (210, 338919), (245, 290502), (294, 242085), (315, 225946), (441, 161390), (490, 145251), (630, 112973), (735, 96834), (882, 80695), (1470, 48417), (2205, 32278), (4410, 16139)]