20453040

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{557}}^1$

素因数の和:596

約数の個数: 160

約数和(自身を含む): 74727360

約数和(自身を除く): 54274320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 85, 90, 102, 108, 120, 135, 136, 144, 153, 170, 180, 204, 216, 240, 255, 270, 272, 306, 340, 360, 408, 432, 459, 510, 540, 557, 612, 680, 720, 765, 816, 918, 1020, 1080, 1114, 1224, 1360, 1530, 1671, 1836, 2040, 2160, 2228, 2295, 2448, 2785, 3060, 3342, 3672, 4080, 4456, 4590, 5013, 5570, 6120, 6684, 7344, 8355, 8912, 9180, 9469, 10026, 11140, 12240, 13368, 15039, 16710, 18360, 18938, 20052, 22280, 25065, 26736, 28407, 30078, 33420, 36720, 37876, 40104, 44560, 47345, 50130, 56814, 60156, 66840, 75195, 75752, 80208, 85221, 94690, 100260, 113628, 120312, 133680, 142035, 150390, 151504, 170442, 189380, 200520, 227256, 240624, 255663, 284070, 300780, 340884, 378760, 401040, 426105, 454512, 511326, 568140, 601560, 681768, 757520, 852210, 1022652, 1136280, 1203120, 1278315, 1363536, 1704420, 2045304, 2272560, 2556630, 3408840, 4090608, 5113260, 6817680, 10226520, 20453040]

約数ペア:

[(1, 20453040), (2, 10226520), (3, 6817680), (4, 5113260), (5, 4090608), (6, 3408840), (8, 2556630), (9, 2272560), (10, 2045304), (12, 1704420), (15, 1363536), (16, 1278315), (17, 1203120), (18, 1136280), (20, 1022652), (24, 852210), (27, 757520), (30, 681768), (34, 601560), (36, 568140), (40, 511326), (45, 454512), (48, 426105), (51, 401040), (54, 378760), (60, 340884), (68, 300780), (72, 284070), (80, 255663), (85, 240624), (90, 227256), (102, 200520), (108, 189380), (120, 170442), (135, 151504), (136, 150390), (144, 142035), (153, 133680), (170, 120312), (180, 113628), (204, 100260), (216, 94690), (240, 85221), (255, 80208), (270, 75752), (272, 75195), (306, 66840), (340, 60156), (360, 56814), (408, 50130), (432, 47345), (459, 44560), (510, 40104), (540, 37876), (557, 36720), (612, 33420), (680, 30078), (720, 28407), (765, 26736), (816, 25065), (918, 22280), (1020, 20052), (1080, 18938), (1114, 18360), (1224, 16710), (1360, 15039), (1530, 13368), (1671, 12240), (1836, 11140), (2040, 10026), (2160, 9469), (2228, 9180), (2295, 8912), (2448, 8355), (2785, 7344), (3060, 6684), (3342, 6120), (3672, 5570), (4080, 5013), (4456, 4590)]