20051840

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:152

約数の個数: 128

約数和(自身を含む): 53978400

約数和(自身を除く): 33926560

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 64, 68, 76, 80, 85, 95, 97, 128, 136, 152, 160, 170, 190, 194, 272, 304, 320, 323, 340, 380, 388, 485, 544, 608, 640, 646, 680, 760, 776, 970, 1088, 1216, 1292, 1360, 1520, 1552, 1615, 1649, 1843, 1940, 2176, 2432, 2584, 2720, 3040, 3104, 3230, 3298, 3686, 3880, 5168, 5440, 6080, 6208, 6460, 6596, 7372, 7760, 8245, 9215, 10336, 10880, 12160, 12416, 12920, 13192, 14744, 15520, 16490, 18430, 20672, 25840, 26384, 29488, 31040, 31331, 32980, 36860, 41344, 51680, 52768, 58976, 62080, 62662, 65960, 73720, 103360, 105536, 117952, 125324, 131920, 147440, 156655, 206720, 211072, 235904, 250648, 263840, 294880, 313310, 501296, 527680, 589760, 626620, 1002592, 1055360, 1179520, 1253240, 2005184, 2506480, 4010368, 5012960, 10025920, 20051840]

約数ペア:

[(1, 20051840), (2, 10025920), (4, 5012960), (5, 4010368), (8, 2506480), (10, 2005184), (16, 1253240), (17, 1179520), (19, 1055360), (20, 1002592), (32, 626620), (34, 589760), (38, 527680), (40, 501296), (64, 313310), (68, 294880), (76, 263840), (80, 250648), (85, 235904), (95, 211072), (97, 206720), (128, 156655), (136, 147440), (152, 131920), (160, 125324), (170, 117952), (190, 105536), (194, 103360), (272, 73720), (304, 65960), (320, 62662), (323, 62080), (340, 58976), (380, 52768), (388, 51680), (485, 41344), (544, 36860), (608, 32980), (640, 31331), (646, 31040), (680, 29488), (760, 26384), (776, 25840), (970, 20672), (1088, 18430), (1216, 16490), (1292, 15520), (1360, 14744), (1520, 13192), (1552, 12920), (1615, 12416), (1649, 12160), (1843, 10880), (1940, 10336), (2176, 9215), (2432, 8245), (2584, 7760), (2720, 7372), (3040, 6596), (3104, 6460), (3230, 6208), (3298, 6080), (3686, 5440), (3880, 5168)]