221720850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{251}}^1$

素因数の和:433

約数の個数: 144

約数和(自身を含む): 648333504

約数和(自身を除く): 426612654

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 30, 39, 45, 50, 65, 75, 78, 90, 117, 130, 150, 151, 195, 225, 234, 251, 302, 325, 390, 450, 453, 502, 585, 650, 753, 755, 906, 975, 1170, 1255, 1359, 1506, 1510, 1950, 1963, 2259, 2265, 2510, 2718, 2925, 3263, 3765, 3775, 3926, 4518, 4530, 5850, 5889, 6275, 6526, 6795, 7530, 7550, 9789, 9815, 11295, 11325, 11778, 12550, 13590, 16315, 17667, 18825, 19578, 19630, 22590, 22650, 29367, 29445, 32630, 33975, 35334, 37650, 37901, 48945, 49075, 56475, 58734, 58890, 67950, 75802, 81575, 88335, 97890, 98150, 112950, 113703, 146835, 147225, 163150, 176670, 189505, 227406, 244725, 293670, 294450, 341109, 379010, 441675, 489450, 492713, 568515, 682218, 734175, 883350, 947525, 985426, 1137030, 1468350, 1478139, 1705545, 1895050, 2463565, 2842575, 2956278, 3411090, 4434417, 4927130, 5685150, 7390695, 8527725, 8868834, 12317825, 14781390, 17055450, 22172085, 24635650, 36953475, 44344170, 73906950, 110860425, 221720850]

約数ペア:

[(1, 221720850), (2, 110860425), (3, 73906950), (5, 44344170), (6, 36953475), (9, 24635650), (10, 22172085), (13, 17055450), (15, 14781390), (18, 12317825), (25, 8868834), (26, 8527725), (30, 7390695), (39, 5685150), (45, 4927130), (50, 4434417), (65, 3411090), (75, 2956278), (78, 2842575), (90, 2463565), (117, 1895050), (130, 1705545), (150, 1478139), (151, 1468350), (195, 1137030), (225, 985426), (234, 947525), (251, 883350), (302, 734175), (325, 682218), (390, 568515), (450, 492713), (453, 489450), (502, 441675), (585, 379010), (650, 341109), (753, 294450), (755, 293670), (906, 244725), (975, 227406), (1170, 189505), (1255, 176670), (1359, 163150), (1506, 147225), (1510, 146835), (1950, 113703), (1963, 112950), (2259, 98150), (2265, 97890), (2510, 88335), (2718, 81575), (2925, 75802), (3263, 67950), (3765, 58890), (3775, 58734), (3926, 56475), (4518, 49075), (4530, 48945), (5850, 37901), (5889, 37650), (6275, 35334), (6526, 33975), (6795, 32630), (7530, 29445), (7550, 29367), (9789, 22650), (9815, 22590), (11295, 19630), (11325, 19578), (11778, 18825), (12550, 17667), (13590, 16315)]