201423820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{229}}^1$

素因数の和:467

約数の個数: 96

約数和(自身を含む): 486864000

約数和(自身を除く): 285440180

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 199, 221, 229, 260, 340, 398, 442, 458, 796, 884, 916, 995, 1105, 1145, 1990, 2210, 2290, 2587, 2977, 3383, 3893, 3980, 4420, 4580, 5174, 5954, 6766, 7786, 10348, 11908, 12935, 13532, 14885, 15572, 16915, 19465, 25870, 29770, 33830, 38930, 43979, 45571, 50609, 51740, 59540, 67660, 77860, 87958, 91142, 101218, 175916, 182284, 202436, 219895, 227855, 253045, 439790, 455710, 506090, 592423, 774707, 879580, 911420, 1012180, 1184846, 1549414, 2369692, 2962115, 3098828, 3873535, 5924230, 7747070, 10071191, 11848460, 15494140, 20142382, 40284764, 50355955, 100711910, 201423820]

約数ペア:

[(1, 201423820), (2, 100711910), (4, 50355955), (5, 40284764), (10, 20142382), (13, 15494140), (17, 11848460), (20, 10071191), (26, 7747070), (34, 5924230), (52, 3873535), (65, 3098828), (68, 2962115), (85, 2369692), (130, 1549414), (170, 1184846), (199, 1012180), (221, 911420), (229, 879580), (260, 774707), (340, 592423), (398, 506090), (442, 455710), (458, 439790), (796, 253045), (884, 227855), (916, 219895), (995, 202436), (1105, 182284), (1145, 175916), (1990, 101218), (2210, 91142), (2290, 87958), (2587, 77860), (2977, 67660), (3383, 59540), (3893, 51740), (3980, 50609), (4420, 45571), (4580, 43979), (5174, 38930), (5954, 33830), (6766, 29770), (7786, 25870), (10348, 19465), (11908, 16915), (12935, 15572), (13532, 14885)]