1285288516

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:341

約数の個数: 72

約数和(自身を含む): 2451186360

約数和(自身を除く): 1165897844

約数列:

[1, 2, 4, 19, 38, 73, 76, 89, 137, 146, 178, 274, 292, 356, 361, 548, 722, 1387, 1444, 1691, 2603, 2774, 3382, 5206, 5548, 6497, 6764, 10001, 10412, 12193, 12994, 20002, 24386, 25988, 26353, 32129, 40004, 48772, 49457, 52706, 64258, 98914, 105412, 123443, 128516, 190019, 197828, 231667, 246886, 380038, 463334, 493772, 760076, 890089, 926668, 1780178, 2345417, 3560356, 3610361, 4401673, 4690834, 7220722, 8803346, 9381668, 14441444, 16911691, 17606692, 33823382, 67646764, 321322129, 642644258, 1285288516]

約数ペア:

[(1, 1285288516), (2, 642644258), (4, 321322129), (19, 67646764), (38, 33823382), (73, 17606692), (76, 16911691), (89, 14441444), (137, 9381668), (146, 8803346), (178, 7220722), (274, 4690834), (292, 4401673), (356, 3610361), (361, 3560356), (548, 2345417), (722, 1780178), (1387, 926668), (1444, 890089), (1691, 760076), (2603, 493772), (2774, 463334), (3382, 380038), (5206, 246886), (5548, 231667), (6497, 197828), (6764, 190019), (10001, 128516), (10412, 123443), (12193, 105412), (12994, 98914), (20002, 64258), (24386, 52706), (25988, 49457), (26353, 48772), (32129, 40004)]