19955250

素因数分解:

$2^1\times 3^2\times 5^3\times 7^2\times {\mathrm{181}}^1$

素因数の和:218

約数の個数: 144

約数和(自身を含む): 63115416

約数和(自身を除く): 43160166

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 49, 50, 63, 70, 75, 90, 98, 105, 125, 126, 147, 150, 175, 181, 210, 225, 245, 250, 294, 315, 350, 362, 375, 441, 450, 490, 525, 543, 630, 735, 750, 875, 882, 905, 1050, 1086, 1125, 1225, 1267, 1470, 1575, 1629, 1750, 1810, 2205, 2250, 2450, 2534, 2625, 2715, 3150, 3258, 3675, 3801, 4410, 4525, 5250, 5430, 6125, 6335, 7350, 7602, 7875, 8145, 8869, 9050, 11025, 11403, 12250, 12670, 13575, 15750, 16290, 17738, 18375, 19005, 22050, 22625, 22806, 26607, 27150, 31675, 36750, 38010, 40725, 44345, 45250, 53214, 55125, 57015, 63350, 67875, 79821, 81450, 88690, 95025, 110250, 114030, 133035, 135750, 158375, 159642, 190050, 203625, 221725, 266070, 285075, 316750, 399105, 407250, 443450, 475125, 570150, 665175, 798210, 950250, 1108625, 1330350, 1425375, 1995525, 2217250, 2850750, 3325875, 3991050, 6651750, 9977625, 19955250]

約数ペア:

[(1, 19955250), (2, 9977625), (3, 6651750), (5, 3991050), (6, 3325875), (7, 2850750), (9, 2217250), (10, 1995525), (14, 1425375), (15, 1330350), (18, 1108625), (21, 950250), (25, 798210), (30, 665175), (35, 570150), (42, 475125), (45, 443450), (49, 407250), (50, 399105), (63, 316750), (70, 285075), (75, 266070), (90, 221725), (98, 203625), (105, 190050), (125, 159642), (126, 158375), (147, 135750), (150, 133035), (175, 114030), (181, 110250), (210, 95025), (225, 88690), (245, 81450), (250, 79821), (294, 67875), (315, 63350), (350, 57015), (362, 55125), (375, 53214), (441, 45250), (450, 44345), (490, 40725), (525, 38010), (543, 36750), (630, 31675), (735, 27150), (750, 26607), (875, 22806), (882, 22625), (905, 22050), (1050, 19005), (1086, 18375), (1125, 17738), (1225, 16290), (1267, 15750), (1470, 13575), (1575, 12670), (1629, 12250), (1750, 11403), (1810, 11025), (2205, 9050), (2250, 8869), (2450, 8145), (2534, 7875), (2625, 7602), (2715, 7350), (3150, 6335), (3258, 6125), (3675, 5430), (3801, 5250), (4410, 4525)]