18398080

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:144

約数の個数: 128

約数和(自身を含む): 49572000

約数和(自身を除く): 31173920

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 64, 68, 76, 80, 85, 89, 95, 128, 136, 152, 160, 170, 178, 190, 272, 304, 320, 323, 340, 356, 380, 445, 544, 608, 640, 646, 680, 712, 760, 890, 1088, 1216, 1292, 1360, 1424, 1513, 1520, 1615, 1691, 1780, 2176, 2432, 2584, 2720, 2848, 3026, 3040, 3230, 3382, 3560, 5168, 5440, 5696, 6052, 6080, 6460, 6764, 7120, 7565, 8455, 10336, 10880, 11392, 12104, 12160, 12920, 13528, 14240, 15130, 16910, 20672, 24208, 25840, 27056, 28480, 28747, 30260, 33820, 41344, 48416, 51680, 54112, 56960, 57494, 60520, 67640, 96832, 103360, 108224, 114988, 121040, 135280, 143735, 193664, 206720, 216448, 229976, 242080, 270560, 287470, 459952, 484160, 541120, 574940, 919904, 968320, 1082240, 1149880, 1839808, 2299760, 3679616, 4599520, 9199040, 18398080]

約数ペア:

[(1, 18398080), (2, 9199040), (4, 4599520), (5, 3679616), (8, 2299760), (10, 1839808), (16, 1149880), (17, 1082240), (19, 968320), (20, 919904), (32, 574940), (34, 541120), (38, 484160), (40, 459952), (64, 287470), (68, 270560), (76, 242080), (80, 229976), (85, 216448), (89, 206720), (95, 193664), (128, 143735), (136, 135280), (152, 121040), (160, 114988), (170, 108224), (178, 103360), (190, 96832), (272, 67640), (304, 60520), (320, 57494), (323, 56960), (340, 54112), (356, 51680), (380, 48416), (445, 41344), (544, 33820), (608, 30260), (640, 28747), (646, 28480), (680, 27056), (712, 25840), (760, 24208), (890, 20672), (1088, 16910), (1216, 15130), (1292, 14240), (1360, 13528), (1424, 12920), (1513, 12160), (1520, 12104), (1615, 11392), (1691, 10880), (1780, 10336), (2176, 8455), (2432, 7565), (2584, 7120), (2720, 6764), (2848, 6460), (3026, 6080), (3040, 6052), (3230, 5696), (3382, 5440), (3560, 5168)]