25489980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:216

約数の個数: 144

約数和(自身を含む): 83026944

約数和(自身を除く): 57536964

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 47, 60, 69, 90, 92, 94, 115, 131, 138, 141, 180, 188, 207, 230, 235, 262, 276, 282, 345, 393, 414, 423, 460, 470, 524, 564, 655, 690, 705, 786, 828, 846, 940, 1035, 1081, 1179, 1310, 1380, 1410, 1572, 1692, 1965, 2070, 2115, 2162, 2358, 2620, 2820, 3013, 3243, 3930, 4140, 4230, 4324, 4716, 5405, 5895, 6026, 6157, 6486, 7860, 8460, 9039, 9729, 10810, 11790, 12052, 12314, 12972, 15065, 16215, 18078, 18471, 19458, 21620, 23580, 24628, 27117, 30130, 30785, 32430, 36156, 36942, 38916, 45195, 48645, 54234, 55413, 60260, 61570, 64860, 73884, 90390, 92355, 97290, 108468, 110826, 123140, 135585, 141611, 180780, 184710, 194580, 221652, 271170, 277065, 283222, 369420, 424833, 542340, 554130, 566444, 708055, 849666, 1108260, 1274499, 1416110, 1699332, 2124165, 2548998, 2832220, 4248330, 5097996, 6372495, 8496660, 12744990, 25489980]

約数ペア:

[(1, 25489980), (2, 12744990), (3, 8496660), (4, 6372495), (5, 5097996), (6, 4248330), (9, 2832220), (10, 2548998), (12, 2124165), (15, 1699332), (18, 1416110), (20, 1274499), (23, 1108260), (30, 849666), (36, 708055), (45, 566444), (46, 554130), (47, 542340), (60, 424833), (69, 369420), (90, 283222), (92, 277065), (94, 271170), (115, 221652), (131, 194580), (138, 184710), (141, 180780), (180, 141611), (188, 135585), (207, 123140), (230, 110826), (235, 108468), (262, 97290), (276, 92355), (282, 90390), (345, 73884), (393, 64860), (414, 61570), (423, 60260), (460, 55413), (470, 54234), (524, 48645), (564, 45195), (655, 38916), (690, 36942), (705, 36156), (786, 32430), (828, 30785), (846, 30130), (940, 27117), (1035, 24628), (1081, 23580), (1179, 21620), (1310, 19458), (1380, 18471), (1410, 18078), (1572, 16215), (1692, 15065), (1965, 12972), (2070, 12314), (2115, 12052), (2162, 11790), (2358, 10810), (2620, 9729), (2820, 9039), (3013, 8460), (3243, 7860), (3930, 6486), (4140, 6157), (4230, 6026), (4324, 5895), (4716, 5405)]